Geek Art: We're All Batsy in the Belfry

Today's Geek Art comes to us from Deviant Art artist VonToten, and it's called We're All Batsy in the Belfry. The piece features most of the villains that Batman has taken on over the years. Here's a note from the artist...

I'm no comic guy so im sure some if not all are wrongly drawn, but i just did it the way i seen em. i think its the first time ive drawn all these characters.