Vichris:
Thanks for the nice comments. All snakes are photographed outdoors. I am pretty spoiled in that I have a variety of backgrounds (various colored lichens to mosses to just dark granite) to choose from on our property in the Sierra Nevada foothills--it's a boulder-strewn landscape and thus perfect for many kinds of herp photography. Camera is a Sony 828 digital set on aperture priority and macro mode. All pics taken at max resolution of 8 mp. I use an add-on macro lens than allows me to not have to be soooo close as to create lens shadow from the flash. The flash is screened by a diffuser (a very simple, card-like thing that snaps on to the barrel of the lens)--so I don't have many problems with glare.
I have photographed herps for many years (with 35mm cameras) and so have a fair bit of experience in "encouraging" them to behave themselves during photo sessions, but they don't always cooperate!. I find that snakes are apt to feel more secure if there is a niche in the rock that allows them to back in and have contact with rock surfaces. If I did not have the luxury of having plenty of natural backdrops here, I would not hesitate to "borrow" some rocks from nature and create an indoor (or garage) photo setup. It's not hard to do. Really, it's all about lighting and remembering that the eye must be the focal point in all pics. Sorry if all that is completely obvious!
Thanks for your interest. Let me know if you have specific questions that I've not answered.
Cheers,
Bob