I like how the shapes sort of flow into and around eachother here, and the colors are eye-catching but still compliment eachother well. The right background maybe looks a little flat, I'm guessing it's a big tree? Maybe some more could be done to give it a sense of volume/curvature.
Texturing is nice and very creative, with good variety, though a bit messy for my taste (the "retro" style with the pure black background does help make it all fit in well though).
Hope to see more stuff from you in the future!
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