Nice work on the signatures bro. If you're going to keep posting your signatures you should post in the same thread and just edit your old thread so there's not 50 threads with your signatures. ;D
The Gif is too fast, too big, and too noisy. Gifs that loop need to send a "message" that you want the people to see. Right now it just send a loop of nuisance.
Your last signature however is simple, strong and compelling great work on it.