All snakes are different, copperheads are almost transparent while rattlesnakes and pythons are heavy and thick.Brown glass is kind of forgiving, I like backing over it. Copperheads can look gray over black, but still keep their color better over brown. Prairies, diamondbacks, watersnakes, timbers, bulls, ratsnakes, all go well over brown.
If skinning a longbow, consider the bullsnake. Tight pattern goes well over thin limbs, and they are loaded with browns, tans,black, yellows and even hints of orange. More pics latedr, photobucket is AWEFUL to use. Takes forever for each pic. Very aggrevated.
Bulls over brown: