LeBron

I wanted it to be a wallpaper but i had to size it down.....

http://www.imagehosting.com/out.php/i513477_STAT.jpg

Its alright.
Those ameba looking things are brushes, they look familiar.
and the stock is a low quality.
Its just alright for me :/

Nah not brushes but Lens Flare,Poster Edges, and then wave...

Should i change the colors?

nah, i think the colours are fine, but the overall image needs alot of touchup work on it. the whole background should fade a litle more, like what you have going on with the right edge, should happen a little more around the whole image. the stock image your using is low quality, has alot of distortions in colour, you may want to clean that up with some clonetool/ some filters, cause right now it just brings down the rest of the image. Apart from that, id clean up that fade if i were you, and make seem ALOT smoother. one way to make it hint at motion some more would be to make the fades as they go back futher a little smaller each time. the text isnt bad, but it seems like its missing some spunk.