well it looks good, its not a perticuly unique style, I have seen it all over the place, but the sig looks good, im not realy sure what to rate it though.
what would realy help is colouring it, maybe a dark(ish) blue, that might make it easyer to seen, and place it on a transparent bg, very good first attemt
try clicking the menu on your monitor and go to rgb or somthing like that, set the preset to 9300k, and fiddle about with the rgb till you are heppy, that might help.