if it were me, i'd get a cool shot of a snake (or whatever you like) in it's natural habitat. Have the artist then reconstruct that in the form of a partial sleeve. I did something similar for my partial sleeve. cheers,
ps... mine though is a painting done by a greek tragedian from the year 467BC.
1.0 Reverse Okeetee Corn, 0.1 Albino Snow Corn, 1.1 Irian Jaya Carpet Pythons