Hey. Welcome to Proko. My name is Stan Prokopenko. We've arrived at another critique episode.
I'm going to be looking at your assignments. Just to recap, the pec assignment had two
parts to it. So, the first part was doing a tracing over model photos. So I provided
you guys a photo reference of models and I wanted you to trace over it and find the different
bundles of the pec muscle.
And the second part was inventing the pecs on top of images of our friend Skelly. So,
I give you guys images of Skelly, just the skeleton, and you had to invent the pecs on
top of it. So, let's see how you guys did.
Let's take a look at what AJ Blak submitted. These look good, very clean, I love it when
it looks clean. You're showing very, very thin pieces in here. When the arm is being
compressed against the torso like this, you're going to see this muscle coming out. It's
going to bulge out a little bit. In here, also same thing, you're not going to see the
clavicular portion. The sternal is going to go up like this. It's going to stretch, stretch
up and it's going to cover that whole area.
Again, very thin in here. And also, you're connecting the muscle to the humerus at a
tiny point. Same thing in here, it's a tiny point. Show the entire area, and actually,
not all the way up here. It would start here and probably stretch all the way to here.
So, extending this clavicular portion all the way to the almost halfway, a little bit
less than halfway.
Again, little point, little point. And this one looks pretty good, other than, again,
the point. But very clean, very clean. The volumes look good on these last two. Let's
see your other page. Okay, also pretty good. The only thing I would say is, continue showing
the pec under the deltoid. Actually imagine what it's going to look like. I know you can't
see those surface forms under the deltoid, but you got to imagine where they're leading,
where the muscle fibers are going.
It's going to help you shade the parts that are visible. It's going to help you show the
forms, stretching towards a specific point. So we're going to follow that crease of the
sternal section, and then it curves back up onto the humerus. Clavicular portion in here,
and it will overlap, actually.
Remember, this goes over. The clavicular goes over the sternal, this goes under, and then
all of this is abdominal. So, show what's happening underneath, go all the way over.
Same thing on this side. The attachment is going to be all along here. So, show that
clavicular portion stretching under and then these guys also coming out. There's a lot
of twisting going on here, a lot of pinching. If you want to get a refresher on what's going
on, watch my demonstration of that area. It's very complicated.
But for your critique, show the attachment all the way to the humerus. Don't stop at
the deltoid.
This next one is from Sharleen Cu. So, Sharleen, what I'm seeing is, two things. One, the connection
to the humerus, you're showing as a point. You know, you got that small dot where it
connects. It's actually going to be a longer line like this.
And also, you're not layering the muscles, the three bundles: the clavicular, the sternal,
and the abdominal. They overlap each other. So let's do a little diagram. We're going
to do the left side. This is the insertion onto the humerus. Then you got the clavicular
origin, sternal origin, and abdominal origin.
The clavicular origin starts at the clavicle and goes all the way down like this. Thinner
piece, thin and long. The sternal section is much thicker because it attaches along
this entire area of the sternum here, and it's going to attach to the humerus a little
bit higher up. And it's going to go underneath the clavicular.
And finally, you have the abdominal down here, and that's going to attach also a little bit
higher. Just going to stagger these so it's easier to see. It goes underneath the sternal
section. So you got this layering of clavicular on top, sternal under that, and abdominal
under that. And so they twist under each other. Now look at yours. You have the sternal going
on top of the clavicular. That is not correct.
So, next time, keep that in mind, make sure you're always overlapping that clavicular,
all the way over everything.
This one from Audie Eagleheart, I want to show because it's another really good example.
Very accurate, very clean, looks like you were looking at my examples though, because
I see a lot of small subtleties that I put into mine, that you've also got in yours.
That's good that you looked at mine.
I wish you would have maybe tried it on your own first, then watched my demonstration.
Because if you copy mine, you're not solving the problem on your own, you're just copying
my solution. So, it's much better for you to learn by attempting it on your own, trying
to solve that problem, and then check your answers by watching my demonstration, because
then, if you attempt it, you'll know what is troubling you.
You'll know where your knowledge is lacking. And then when you're watching my demonstration,
you'll know what to watch. You'll be like, "Oh, that's how you do it!" So your specific
questions will be answered by watching my demonstration. But either way, you did a very
nice job of copying my demonstration. So, that's good.
Next up is Tomas de Zarate. So, Thomas, you could be a little bit cleaner with your lines.
Think about the shapes a little bit more, but let's focus on your anatomy. So, first
of all, in here, look it, you have the fibers going horizontal, and then all of a sudden,
they turn and go up.
Now, that's not going to happen. The fibers that attach at this point here are just going
to go straight up, straight to the insertion point. They're not going to go like this and
then decide to go up. You know, there's nothing pulling them down in that area.
The attachment that you're showing on the humerus here is way too small. So, it's going
to start here and it's going to go all the way over here. Much longer, more than twice
as much as you're showing there.
Also, look at how thin you're showing this area. There is no way that all of these fibers
in here are going to come through and then become this tiny little thing and then become
the tendon. There's no way that all these fibers are going to fit in this little area.
So, you're going to need to add much more mass in the armpit. That's where all the bundles
overlap and twist, and so it's going to be thick. It's not going to get that small. Same
thing in this armpit in here. Just gets way too small. And if you extend this insertion,
now you have a lot more area to show all these, the thick volumes.
And we got our final submission from Neville Harvey. Love the flames, Neville. That's awesome.
Creativity's always good. It's good to have fun while you're doing the assignments. It
shouldn't be boring, it shouldn't be a chore. You should be enjoying these, and I can see
that you are.
Now, some things that I'm noticing are just off. First of all, look at how your abdominal
portion, you're just going almost straight up and under. Where is this going to attach?
These muscle would attach to the clavicle. They should point over here. Not exactly there
but closer to the humerus. Then they'll go attach to a tendon around here, so they'll
point more like that.
Down here, you've got the same thing. Your muscle fibers are just going straight under.
But also, you're extending that abdominal attachment way too far back on the ribcage.
Look at that. That's almost at the scapula. Almost back here is the pec. You know, the
pec ends there. It's not going to wrap all the way around to the back side. So, make
sure, right around there, that's the ending of the abdominal section. That's it. That
concludes our pec critiques. Thank you, everybody who submitted their assignments. I'll see
you next time.
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