It's SUCH a common error -- and, yes, no need to go a'hunting, because I have made it myself from time to time. Not much call to draw hats at all these days, but artists all, when you do, avoid THIS:
The only issue I have with that Perez Batman is that it really only looks like Perez from THAT angle. I can see it quite clearly that way but once you start to rotate it, it loses it somehow. Most of the others have been impressive sculpts of an artist's style. It was dissapointing since Perez was one I was looking forward to most.
Nice Tarzan from a couple of years back.
