I just made Xiuquatl today, and I love it. Aweso.e design and concept, a lot of detail put into it, effects aren't too ridiculous or overpowering. Snek is adorable, but it feels kind of uninteresting since all it does is follow you with no interactions or anything, even in combat. Would be nice to see it have some more animations (baring fangs, flying around the player etc) as you attack, maybe lying on your mount similarly to having the Ipos book open on a griffon.
Other than that gripe I've been loving the episode though, seriously one of the best so far.