It's in all blues to keep it muted. I didn't want it competing for attention with the rest of the model.
To get the image, I used one of the Geek's photos of his actual model and added some background to it. There isn't much detail, but it's just enough to give the suggestion of a finely detailed mural on the back of the main banner for this monster.
It's really an extra. And by that, I mean it's not one of the things you notice right off the bat when you look at the model, but it's something you'll notice when you get closer and really start to look at all the details the Inner Geek put in there and this fits right in there as well.
And that ends my work. Look for The Inner Geek to post updates on his Titan since I'm mailing off these in the next couple days.
Here's a link to the Geek's finished Titan with banners.
My Project Link: Follow my Reaver Titan banner project