I think it is just a skin shade Kriz, Indi you should fix those sharp talons on his feet meaning shade them his poor toes too, and I hope you put on those claws back on his hands. Can’t wait to see you work your magic on the head of this guy...
edit Your a sick person ^ edit
Beyond all that I have some ideas, perhaps you can have some green ooze going through the tubes, and keep the numbers on his head.