Calling for Help - Signature

A Signature I made out of a stock which I do not know who took. It was in a stock package that was in my former school's computer lab. I'll provide the link for the original stock soon, so if anyone knows the owner, please tell me so I can credit him/her. Also, any comments and criticism will be appreciated and any advice will be very helpful.

Made in GIMP 2.6

EDIT : Stock Used > [link]
As asked before, if anyone knows the owner of the stock, please tell me so that I can credit him.