/ic/ - Artwork/Critique

Been drawing serious for a few months now with my small wacom tablet. Hard at practice pretty much everyday, but only a few days ago I decided I want to draw without reference. Didnt work well.
So right now I going back to basic shit and using this method(which I dont even know the name, I just say "skeletons") where you sketch the joints, limbs, etc before you get to the final process.
Any opnion on this? Just imagined a pose and tried to sketch it to see how it comes out.
A girl with her hands behind her head and one leg up. Maybe its too simple and I should have tried something more complicated.
Anything I should pay more attention to?