Most 'this' as you put it so far, as a relatively new artist it helps me with positions and stuff. Theres a few peices of normal stuff too ill make a folder in my main gallery. deviantART muro drawing
Yeah i have a few references and some friends help me but i like to try and learn on my own. Usually when i draw a skeleton the body never follows it so it gets a little fiddly later on. Also i quite like your Luna picture.