looks ok. next time try not to use so many different colours for text but other than that just play around find so tutorials and see what you end up with
Hahaha, I love TF2 and I love that quote. Looks like you just blurred the background a bit with that smudge tool? Maybe make your name a brighter blue because the tag is getting swallowed by the black in the background. Also, when you save it, make sure to save it at highest quality... with .jpg, anything lower will result in artifacts and distortions, like the right side of the green words.