Its a tutorial?! While I was working on 'Special Delivery' it occurred to me that I could take screenshots and explain my madness method. Don't know if it'll help but why not.

When using textures please make sure you follow the rules of the person who made the texture. FrostBo on DA provides the texture used here, and doesn't care if you credit him when using a texture in your own works. But many stock and texture artists want credit and notification, so please mind your ps and qs! (Also make sure the texture you want to use is actually stock please.)