It would also help to study anatomy and proportions. We have a ton of great resources, cached here: Anatomy Reference For example, PoseManiacs has excellent references https://www.posemaniacs.com/tools/viewer/poses/01H6RBJ01K4AJGPMCEYW5FKYFZ
The wiki is currently down (sad face), but we have some good pages with topology examples that might help. Cached versions: * Body Topology * Limb Topology * Face Topology * Shoulder Topology