At 275 your best bet for leveling skinning is Sunken Temple. An almost guaranteed point per skin off the dragonkin in there. I leveled to 300 in there, lots of green dragon scales that sell very well and you'll get your skinning up to a level where (when you're ready) you can skin clefthoof and knothide leather (that's the money boy).
Cobra scales ARE great money, but the drop rate is horrific and the mobs few and heavily farmed. I once spent an entire day just trying to get cobra scales, killed maybe two dozen, all the while racing other farmers to the snakes and never got a single scale.
It was shortly after that when I switched my skinning to alchemy, but that was mainly out of boredom not because skinning isn't profitable.