Wow, lots of chibis! <3 :D I can definitely tell you enjoy drawing them. :3
A suggestion I can give you for improving your artwork is to just keep drawing. A LOT. And always keep your eye out for things you like. If something catches your eye, think about it and why it moved you. Also, grid lines and shapes are your friends. It's okay to sketch and figure out the connection between your mind, eye and hand.

... well I got a little art-teacher carried away there. ^^; I hope you don't mind.
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