He does need to eat, yes. The little people can't eat enough to keep him fed, they don't eat more then a taste here and there - when they eat at all. He does most of his eating with the makeshift mouth in his tail.
I can't really find any words to describe the feeling this picture gives to me when i look at. It's pretty shocking and interesting. The detail of the room on his face it's, wow, it's the first time i see a concept like this and blew my mind. It's like a surreal composition made by a great painter of the Golden Age, i can't describe it at all, it's completely undescriptable, congratulations because i can't find any more words... A-m-a-z-i-n-g
One time I was looking at this and the song "If Your Heart Was A House" [it might be "If My Heart Was A House, I can't remember] by Owl City, and for some reason it seemed to really fit with this charicter!
I really love this charicter! He's just so creative!