I totally agree with StopSign, that supernova is not really in the right spot, and if it were, there'd have to be more shadows and no overlap on the last few letters.
I'm not sure what it is, but your lines are a bit raggidy?
Not sure if you get me, but there are white pixels around the outlines of your letters, could be your program messing up, or the fact you use photobucket
Last thing, if you upload images, use the direct link to the image, now you have a link in your signature and post that links to a photobucket page containing your image.
Rightclick on the image, Copy image URL and use that one.
That way you can put another link in, like your vouches or selling topic or whatevs.
Cheers!