Here's one on my first matte painting that is worth showing... What started as a simple simple sketch turned out to be a photo realistic composition witch is exactly what I wanted to do: no painting, no 3d, only photo manipulation. I didn't want to use big chunk of photos and just put it in the montage. Each rock is unique :there's not a rock or other element (like water) thats isn't custom made out of multiple bits and pieces of real pics. Like Dilan Cole says: "You make the picture fit your sketch, not the contrary".