Anatomy practice, can anyone tell me if anything is off or?

Looks very well done. The leg looks like it should have more muscle to it, and especially the butt since it looks nonexistent. It makes it look like it goes straight from these to leg. The arm should be higher up cause the hand should reach about mid thigh when fully extended. This shows it mid thigh when bent, so it doesn't look right. Otherwise, it looks really good. Keep on practicing! :)