Nature VS Nurture: Tortoise close up

Haha i propper like this, i mean for one, its drawn really well, but its the actual concept and design i find intruiging.
Especially seeing as after seeing this i wont be able to look at a tortoise without thinking... i know your secret clockwork being! no doubt when i next go the zoo i'll get thrown out for trying to undo a tortoises shell so i can re-wind it