Heh - saved you a job I guess
I get so enthusiastic about these things whenever I see them, I don't know why - perhaps it's just because I am in awe of someone who can draw*, especially that well, and also making the 3D effect look so good must appeal to my technical nature too.
* True story - my art teacher at high school actually said to me "Well Chris, I used to think everyone could draw!!" He wasn't being nasty, just truthful!! My response? "Told you so, sir!"