Needing hi res version of Farley's Splinter portrait

[Venom]

My boss is leaving the company and his favorite character is Splinter, so I wanted to gift him a picture of everyone's fave wise old rat. Preferably a size where I can take and print it out at a store then put it in a frame.

The one Stephan posted a couple years ago would probably work great if not for the personalized signature.

Thanks guys!