I like the colors but otherwise agree with SPC. The font doesn't really fit, not just the style but the color. Might have fit a little better if you sampled the color from the little green splotch on the girl's left arm/shoulder...?(Can't say for sure, I have an issue with text in my tags as well).

I also agree with SPC about the lack of a focal point. Everything in the sig leads the eye to the bottom-left, but nothing keeps the eye from just flying right off. Maybe try a bit of vignette to keep the eye inside the tag? You have those 3 dark spots that almost start to act like a vignette, but for me they actually draw my attention because of the intense contrast with the rest of the tag.

Hope I helped!