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I've had to move three of your sketches, so far, out of the forum meant for finished (a.k.a. completed, refined, whole) work. I don't mean to sound rude but if you intend to take advantage of this community's benefits as a learning tool, you'd do well to read a few faqs before diving in.
As for your work, I suggest holding off on using digital mediums exclusively or at least pursue traditional drawing as a paralell. Stylistic interpretations of the figure are good and all, but only if you have the proper backing so that you know what it is you're distorting. Don't just go off of other artists that you've seen who do similar things. Things like light, shadow and form have to be observed first-hand. As do the mechanics and subtleties of the human figure. Life-drawing excercises will not only train your hand but your eye as well and your designs will start to solidify.
hope that helps.