I'd go for more clean, sharp and precise, if you like that style. Use solid shapes, a healthy amount of contrast. It's hard to say on such a small pieces though, it really depends what you're aming for! Check out some other artists, whose style you really like, and take a real close look at some of their pieces. Notice the shapes they use, the lines, the techniques, the relationships of the different colors in the palettes, stuff like that.

Thanks for your input! What do you think I could do to tone it down and balace out the picture? 
Also, I'm looking on guides on making my art more consistent, and not at odds with each itself. Any suggestions there?
 

The background is super cool, but the middle doesn't hold up, too much dithering and banding around the edges are distracting.

the style and shapes are pretty cool!