Sorry, I don't like it. The render is colour blended, so it sticks out. The lighting is wrong (several light sources) and it lacks depth. I'm sure a tutorial of your current would be much more appreciated. Although, I get the feeling you didnt make it...
Hehe I made his current lol. Anyway, about your sig... I think that if the bg was so monotone in terms of colour, the sig would look much better. A hint of other colours around the main effects would definitely spice up your sig. The sig has nice effects though.