I think your color scheme for this is already quite good, however I also think
that your background is somewhat crowded and random at the moment. I suggest you
reduce the number of text effects a lot and instead concentrate on the
designs/brushes and their placement, maybe you could also try to make them look
less blurry. I don't know if that image is already your real resolution in case
that it is I would suggest that you make your wallpaper at a higher resolution
because currently it is really small (don't know if that would involve
vectoring).
Good luck to you.
Okay... My computer just crashed.. hahaha so I have to do it all over again from
the start...
I removed the random text and change it to filtered Shibuya photo. I think I
fits the theme better. Then I tried make it grunge a bit.. this is the first
time I tried to make something grunge... Please tell me what you
think...
I am just dying to have a "the World Ends With You" Wallpaper for my Desktop.
This is just what I have in mind... not yet complete... I think the image is quite blurred also.
What do you guys think? Is it too full? Should I vectored the image?
From the Creator of Kingdom Hearts....

Subarashiki kono Sekai [The World Ends With You] (c) Square-Enix
Character design by Tetsuya Nomura
I think your color scheme for this is already quite good, however I also think that your background is somewhat crowded and random at the moment. I suggest you reduce the number of text effects a lot and instead concentrate on the designs/brushes and their placement, maybe you could also try to make them look less blurry. I don't know if that image is already your real resolution in case that it is I would suggest that you make your wallpaper at a higher resolution because currently it is really small (don't know if that would involve vectoring).
Good luck to you.
Okay... My computer just crashed.. hahaha so I have to do it all over again from the start...
I removed the random text and change it to filtered Shibuya photo. I think I fits the theme better. Then I tried make it grunge a bit.. this is the first time I tried to make something grunge... Please tell me what you think...
Pretty good, I like it.