I'm guessing it's a wallpaper? It is very good. I like how the top horizontal line goes in front of some things and behind other things. It's a tad bright but I like how the girl is colored different than the rest of the image. Very nice job... I'd say just tone down the brightness a little bit.
Oh. Would making it larger to accommodate wallpaper size decrease the quality? Because it could definitely be used as a wallpaper.