The thing is, the technique doesn't matter. You can make it work with crayons or in ink wash or in 3DMax. The problem with the 3d program is that you have to spend a lot if time tweaking your color correction and textures and lighting to make it not look stiff, the problem with crayons is that it will look flat, and you have to be very skilled to push ink wash around the paper.
I prefer drawing the shit out in pencil, scanning it and Photoshopping it.
