His head should be carved into a mountain somewhere. There should be a mount Rushmore for the Beatles... the Mount Fab Four.

EDIT:
Update.

A guy on another forum pointed out that it looked creepy, and I couldn't deny that he was right. So I un-creepified it and it's much much nicer now IMO.

Well, with it's current wing movements it would be moving...backwards. Here's a fast edit:

(Only changed the wing movements, to show you what I mean. Black outlines were removed accidentally)

No, it shouldn't. Ever seen a bat fly? I've seen lots, they don't fly like birds, or smoothly at all. They flap their wings back and forth/up and down very fast and kind of flutter all over the place, like flies. They can glide as well, though, I think.

How else am I supposed to explain?

The individual bits look nice so far - kinda hard to crit since it's unclear how it will look in the end (you indicated there'd be arms), but one thing that I can tell you is, pieced together, that head is going to look way too small for those hands. I think you should replace BD8C52 with 9C7352 and 9C7352 with 425263, to cut down on the color a wee bit since I don't think your use of them justifies their existance in the piece. The shape of the head, as well, could use some work. It is quite flat on top but immediately and steadily begins to slope inwards to the chin, whereas a real head doesn't noticably start to curve towards the chin until it (vertically) meets the point of the mouth. I also despise your (incorrect and inaccurate) use of the corna to imply demonic qualities and satan..ism. But that's your choice, I guess.