Interesting

Well this one here is a bit different but not uncommon. I do like this one with its use of a frog or lizard, but something reptile and fun with a nice face to show it has an expression of melencolly. It needs more like a background, I don't find it too interesting without one, but it is interesting. You have shading, lighting, coloring, and textures. You just need a solid background here but good job overall.

~~THINGS TO IMPROVE ON~~
Add up a background to this for more solid look

~X~

That face. XD

That's obviously a trace-over of my Grinch artwork: http://www.newgrounds.com/art/view/krichotomy/derpy-grinch

:P

Looks a lot like Slippy from Starfox.