A very nice image IMHO. I think the tongue adds character. I can't think of anything more appropriate in a portrait of a reptile than its distinctive forked tongue. I see good detail and texture, always a plus. If I were going to nit pick I might mention the clipped off toe on the LH side. Cropping appendages like that often creates uncomfortable feelings for many viewers. Some might suggest a little cloning work on the catch light as the ring light reflection isn't something you'd expect to see in nature. Overall a very nice image.