This just looks like a jumbled up mess of brushes to me, I can't tell what you were going for really. Like is that a cloud shes sitting on or something, just looks like a big white smear to me, it needs more shape to it. And the colors are unappealing, you should have went with an even softer, lighter shade of blue and a soft pink. And useing stock photos for the butterflies would have probably turned out much better. As brushes alone really have no depth, they're one solid color, play around with the blending options and try using textures to make things pop. ^_^

This wallpaper looks well made. Nice job on making this wallpaper look efficiently.

Nice job.. thank u