Hello, I have been learning to draw hands,and beyond the basic structure, I have no really detailed knowledge of how it works. Paired with my knowledge of how to draw structure, shading and making images look good, I have picked out my three best hand studies, which I hope to get a critique on. Where do I go next with them? They are done in mechanical pencil and ballpoint on office paper - just everyday practice work. Thank you for your time and consideration.