I really enjoy when illustrators grab a theme and start to experiment based on that. Dennis Culver has done that using Batman's villains as his subject. Gotta say I really like the outcome.

Dennis reimagined most of the designs, but there's still some classic looking villains here. Personally I really enjoy the most famous ones like the Joker (he kinda looks like Joe Pesci here) and the Penguin (who gets that non-freakish, bad gangster look). For more of his pieces, please visit his portfolio at DeviantART. He'll appreciate it. Cheers! ;)

The Monk

Dr. Hugo Strange

Black Mask, Bane, and Calendar Girl

Scarecrow, Egghead, Harley Quinn

The Terrible Trio and Doctor Phosphorous

Joker

Great White

King Tut

R'as Al Ghul

Mad hatter

Manbat

Harvey Dent

Riddler

Grundy

Firefly

Penguin