Made some large color changes as you can see, made the background over all darker to make the text and Ichigo stand out more.

You have a good image to edit. I believe you could find a better background for this image.
I think you should vector the image to get the bigger size of Ichigo, so this wallpaper won't looks plain. if I were you there are a lot of I would do to this image.

Those are:
1. Fixing the outline, because some outlines are cut out
2. Fixing the signature, bacause the signature written on the wallpaper & your username aren't the same
3. Finding a more interesting background. I think black background is good, but you have to do something on Ichigo. If i were you, I wouldn use his whole body & make some shining circle around him. For the background, I would give him a battlefield looks like hueco mundo at night

Keep working on this wallpaper & never give up!