The zombies in the show look way better than even zombies in movies. I don't know if they had a lot of money or just really talented make up Plus they look extra super creepy. Here's a video about making the "bicycle girl" (the zombie pictured below). The transformation is really amazing.
I can't wait for October 31st!! It looks like it's going to be pretty close to the graphic novel. I'll leave you with some cool screenshots.