Deadmau5 ftw I like it, but I think the background should be coloured differently, or perhaps the mask in the left should be black instead..
Good for your first try, but if you want to get into graphics then read some tut's, look up some videos and keep practicing.
Not bad for a first signature. I would look up different kinds of sig tutorials, and experiment with that. The border doesn't really help with what's going on in the sig, so look up how to create different kinds of borders. I can see potential in your future signatures, so keep working on it, and you'll succeed.