screwed up on the collar but I trieddd Sketch anatomy help for @-ArtisticDragonz- (love their art, go check em out!) First image is original, space/ click to look through 2 images by me
Most differences are pretty minor, I accidentally changed the expression on his face so just ignore that haha Mostly, make sure you are aware of 3D forms in anatomy while working; each part of the face has planes of its own caused by bones in some part and muscle/fat in others! I had a book about anatomy to refer back to as I was working (hopefully one day I'll just be able to remember but not there yet). I think the biggest change was really just the shape of the shoulders, at this angle the right arm (farther away) is overlapped by the chest, and the shoulder is relaxed, so for the most part it's not really visible for a natural pose. The shoulder is very mobile, so it could change depending on attitude or if it needs to be rotated a certain way for a pose, but I think this should work pretty well for something neutral! (A weird note from learning bone anatomy is that the only bone connection between the whole arm and ribs/torso is the clavicle. the shoulder can basically do whatever the heck it wants within that limit lol)