A little update.
I don't have a lot of time to work on it.

Thanx a lot for this good reference arran. :attn:
It will make easier to make details. Great photos !

I hesitated today between making even more details under Maya or to pass directly under Zbrush and I read this article (http://pixologic.com/zbrush/interviews/digic_interview.html) and convinced...

I had 5 minutes so I decided to repair my error on the lips and I updated the top of the head...

With the picture is better :bow:

Wireframe from the side view

I merged one more time the middle of the upper lips. :headbang:

And here is my microscopic update :shakehead Zbrush will help me a lot soon for details

Thank you everyone for these comments!
That given pleasure. :attn:
I show you the reference I used.

http://www.main.clara.net/gary_pages/gary_images/iguana.jpg

Indeed, it is only some...

Here it is ;)
I opened the mouth because on the previous picture i merged it accidentally :headbang: