I love this!! beautiful! Such lovely colors :) I actually really like the white background too. The only thing i can recommend if you want to keep the white background is to try to AA and smooth out the edges to blend a little to make it one with the white background. LAWL if that makes sense. Rough example of what I mean here
i1283.photobucket.com/albums/a554/RHLstudios/EXAMP_zpsf01caaf1.png
The colors don't really mesh well with the grey background imo. (The benifit of making art on a blinding white background I guess...) though maybe I could add something to the border to spruce it up.
Thanks rhl, the main reason I didn't use AA was because I didn't want to add extra colors, but I guess my colors blended in better than I thought seeing how you did not add any :O