Minimalist practice

I could've made this simpler

Just a photoshop practice because I haven't done anything in the software that's 100% made with it, I usually just use PS to refine drawings that I did in SAI

The Aliens had finally visited Earth...

only to find out that there's a Zombie Apocalypse going on

(I'm not sure if anyone has written a story like this, because I'd be glad to do it)