I'd have to side with everyone else here. It looks like a very pretty normal. That being said, and please just take this as an idea, but perhaps showing the snakes under better light? The video seemed very dark to me, and if there was any subtle color along the sides, it was lost or covered by the glare from the scales. If the dark was intentional, I'd suggest maybe using a dark background with the better ambient light. :)
Also, I'd perhaps think about moving the camera a little less, it felt like I was staring out a car window, you can get the basic features but unable to focus on particular details. This is all just personal opinion, but might also make it easier of people to focus on the animals.
Alright I'll get off the soapbox before it crumbles and I fall on my rear.