So that's what they were talking about... no wonder I was just standing there like an illiterate monkey, trying to comprehend the video in the middle of the night XD Guess I will stick to good old drawing.

Hi mathews. I really like how the lines flow, and the figures feel alive. I think that the only stiffness I see is on the pelvis on the seventh drawing. Proportions seem good too! I think that if you start with the gesture, the arms and legs will feel more natural, like the rest of the body. Also, it doesn't feel like the muscles attach to bones. I would suggest to try to draw the bones after the gesture, and try to map the origins and insertions of the muscles to the bones. Finally, try to have different kinds of lines (not the same curve in repetition). For example, on the third drawing, you drew the upper arm with four identical curves (from nech to elbow). I would suggest to have more straights and angles, so that the forms look more natural and solid. Good luck in your anatomy studies!

Hi younchen, I like the way you have the gesture and then add the forms of the muscles (like with the trapezius). The placement of each form feels more natural this way. I agree with Liandro, he always gives great advice! I would like to add two more suggestions. 1. You drew cross-contour lines on brachialis and deltoid opposite of the contour-lines of the biceps. These cross-contours should be the same for all the upper arm, because they are on the same form (cylinder in simplification). The cross-contour lines you drew on brachialis and deltoid seem more accurate to me, so I would suggest to change these of the biceps. 2. Although the forms are Very good, they feel a little bubble-like. I would suggest to add some straights here and there, in order to feel more solid.

Hi younchen, I agree with cchapman3. I liked the skeletal structure you drew on the third image. It's very clean and I can easily understand the forms in order to give a critique. The scapulae look well placed too! 1. You tilted the rib cage too far back, like he is in a lying position. Also, you have the perspective right at the bottom of the rib cage, but the sternum and the top (neck area) don't follow the same perspective, thus they end up looking flat. 2. We are looking down to the rib cage a little, so the clavicles will have a subtle bow design (they aren't going to be straight, as they would be, if we were looking at them from the front). The right clavicle should be distorted a lot, because of the extreme perspective (it should be quitle literally an "s curve", not just curved a little so that it resembles an "s"). 3. The 2 humeruses are too thin, and should be straighter. The right humerus is a little short (it should end in about the same level as the bottom of the rib cage). 4. Lastly, I'm not sure if you deliberately tilted the head back, but if it's not deliberate, the head should form an "S curve" gesture with the knees being the other end of the "S" line. Good luck in your anatomy studies!

Hi Graves, From the Shoulder Bones ebook, it says about one cranial unit from manubrium to bottom of the sternal body, and I measured about one head from manubrium to end of xiphoid process.