Hey, that looks cool mate, but if you put the teeth like that it will bite it's self.They have to stick out. In the real world when snakes mouth are closed the teeth are at 0 degrees (in line with the upper jaw) but when mouth are fully open they are about 130 degres and they stick out. And the body, needs to be smooth. Later you can add details by putting a displacement of snake skin and converting it to polys.