In case you don’t know how a mutant lizard looks like, it’s basically this:
Sooooo lizard venom
I really like how you made the head; it’s simple but works - definitely gives off the same ‘feel’ the source material does. It could probably be a bit skinnier but that’s more just a restriction of the building system at this scale than an issue with the MOC itself. It’d be interesting to see a much larger scale one with more accurate proportions though.