This is really neat. I really like your style of anatomy; quite original and interesting.
My advice to to work on backgrounds a bit more. The one in this image seems quite minimalistic compared to the key focus on the foreground character, but also kind of empty. Honestly, I really like the minimalistic style along with your rather angular anatomy, but perhaps add a few more details like trees, clouds, etc. Along with that, maybe tone down the saturation of the backgrounds. I find that it is really rather bright, and takes away the depicted affect of the character. If your background colors are a bit more dull, then the viewer's eyes will be drawn to the main focus, which is the character, as apposed to the background throwing the character off.
I'm rating this 3.5 stars due to the fact I both adore your style, and see potential and room for improvement. Keep practicing to discover color combinations you like on a duller scale for backgrounds, and I'm sure you'll find a way of doing them so they're not taking away from the key attribute in the image.
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