Looks like a lizard, mostly because the colours don't look like tiger colours, the highlights make it read as somewhat shiny, and the spine looks like it flows straight into the tail... which is also true for tigers, but tiger tails tend to be capable of more motion than lizardses.
Plus, don't tigers have big white patches of fur everywhere?
I love it, hard to see that it's chess but thats not rely an issue
This one really has feeling. Remind me of the countless late night lan parties I've had, hehe.