I really like the effects and the colors. But the right side is a bit too empty, and it looks a little flat.
Good composition and good choice of colors for the background, but I think the render doesn't fit very well in that rainbow. Still a pretty decent tag. =)
Like the little effects on the shoulder but otherwise, she doesn't fit in and the background looks like something people were making 3 years ago, veeeery similar. Not your best but not bad.