What have I done...? (ROUGH WIP)

Ayyy, I don't think I ever posted anything too dark here, but I liked this TOO much not to post it, omg. The characters aren't white, but I was just too lazy to color them in after doing the blurring? >idiot.
Though, I might be able to fix it. Who knows?
This was done on last night's stream, which ended up being 9:30 hours! How time flies when you're having fun drawing ;-; (Thanks for everyone who attended! Haha, I always forget to post here but people still find their way there XD)
Due to me not going to school on Monday and Tuesday, I might be able to fit in a few commissions ;3;
(Sorry if it's taking so long, but my very strange artblock just doesn't want to go away)

I won't tell the story behind this unless someone asks ;3;
P.S. These are my characters, no one in particular. 
Credit to Siansaar for zombie ideas or something. I just needed some refs and I remembered they had amazing zombie ponies drawn, so I used them for the time being.