I think what I like most about the digital format is how I can affect directly how the reader first sees the comic. When I imagine a sequence in my mind it's always in motion, so sometimes picking the right scene in a thumbnail for a page can be tricky, but digital comics allows me to use more of the motion and movement in my imagination in the storytelling. Eventually I'll work my way to doing Yusuke Murata level layouts where each press of the advance button feels like a new frame in a slow moving animation. While I don't think digital comics should be motion comics, I think some of the techniques Murata uses in the bullet time-esque moments of One-Punch Man are practically begging to be utilized in this format. I'll try to use more of that in the next digital comic I do.
Anyhow, back to the zombies.
Here's a link to the first half: http://www.jorgesantiagojr.com/2013/05/zombie-digital-comic-pencils-part-1.html