I'm not too good with picking colors. Anyways, I gave it nubby spikes since I noticed marine iguana's have lots of spikes all over them, so I figured that could come into play in it's evo. I call him Aguana (agua and iguana). I tried to step away from making it directly look like an iguana as I figured it's later forms would become more fierce looking and most likely fit into an iguana like structure.
EDIT- I feel like I should add more to him honestly. Idk, with the Kiwi we had the idea of it being the bird as well as a bush and what not, is there more to this guy or is it just a marine iguana?