Left for dead fanart

A piece of fan art I did of my friends and I dressed as the L4D characters:

I thought L4D gameplay was amazing, and in my opinion L4D and L4D2 are the best coop games out there by far. With this piece, I wanted to show the fast action which goes on when the horde attacks, which the game does so well (and unpredictably!). We are running and gunning here - my friend with the petrol is about to set us all on fire though (which he does a lot). The piece is for a poster to be printed A2 size, so its a bit downsized here! Below is a close up of the characters to show more detail: