Abominations serve within the temple itself as the priests. Venkatesh is, of course, the high priest.
The surrounding community is populated by halfbloods and a few purebloods not on a mission in foreign lands.
Slaves of all races are found within and around the temple. They perform menial labor and often serve as food.
The inner areas of the temple can only be safely accessed by abominations and snake-tailed halfbloods (though the halfbloods are not actually permitted there).
Most of the traps in the temple are poisoned so the yuan-ti can detect them with their detect poison psionic ability. Some traps, particularly those further in the temple, are not specifically to foil any yuan-ti who would overstep their bounds. The abomination priests know where these traps are and they are mostly the kind that trigger via stepping (rendering the snake-tailed yuan-ti immune).
The abomination temple acolytes are red, yellow, and black banded snakes like coral snakes. They always have black heads.
The abomination priests are all black-scaled cobras with gold-lined hoods (the inside of their hoods, near the face, have golden scales). They also possess the indian cobra's curled design on their backs, again of gold scales.
I have not decided if Venkatesh has a hood. He is definitely black-scaled and he has the diamondback pattern down his back.
I feel a hood would get in the way of, and detract from, the skull and spine headdress he wears. It is possible, however, for him to have a hood but keep it "tucked in" against his head and neck while wearing the headdress. Whether he has the hood or not, he definitely does not display it while wearing the headdress.