1) far too small for a wallpaper. You need to make it at LEAST 1024x768, and preferably even bigger. It's easy for a picture to look good once it's been shrunk to fit a small monitor, but when you enlarge a pic to fit a bigger one, it looks bad.
2) I just don't really like it... the red is flat and uninteresting, the stocks aren't particularly well cut out and they don't blend with eachother or the background very well, the stocks aren't very well placed in relation to eachother, I donno... I'm sorry if I sound harsh, but I just don't think it's very good.
With more practice you'll start doing a lot better.
Mr.T u should have did it with a black bg, would have complimented the pictures wwwwaaayyy better^^; The T-pac on teh left on top fingers look weird, try to straighten them up eh? But it's good though I say though it look like u did it in paint, but whatever u got try to toogle with the options some and then see the results cause this one looks too bland. But the font looks awesome!