Seems like the focus is out just a tad ( maybe due to resizing? ) yet I am seeing the focus as being more central gecko body that face that I would prefer. great use of the white B/G and lovely composition.
I think it would have helped a lot if you used a larger picture of Pepper and a little bit clearer; on my computer it seems too blurred..but I like the contrast with white background; I just can't get a good look at him..
I like the negative space but the background seems to have a graduated color on the right. It could be purposeful but looks more like light falloff. The focus could be a little better on his head too.