Backgrounds: I came up with this tutorial when looking through Shirow's "Intron Depot 2 ". I noticed he uses a lot of CG backgrounds now which were really cool. However, I don't have 3D Studio Max or even Bryce 4...so I found a way to fake it in Photoshop..and now I share with you.
You will need Photoshop version 5 or higher to follow this tutorial and some familiarity with channels and layers.

Step 5: Texturize

Here's where you have a choice. You can try and make your own textures OR you can save yourself a lot of time and energy by purchasing a StockPhoto CD like I did. These textures came from bowman design studios. (See the link on my Links page).

Load a texture on it's own layer above each shape. Hold down the "Alt" key and click the border between the layers in the layers pallette.

Step 6: Make some cuts.

Flatten your layers
(choose layer>flatten image)
Grab your pen tool, hold down the shift key and start making slections inside your shapes. When you have a selection you like hit enter (by your num pad) and then Ctrl+j. This puts that selection up on it's own layer.

Step 7: Pillow emboss

When you have all the selections on their own layer..right click that layer and choose "Effects" from the pop up. Deselect drop shadow and choose
>bevel and emboss
>change the blur setting to 2
>change the emboss type to "Pillow Emboss"
>Keep everything else the same.

It should look like this.

Step 8: Repeat as necessary

Doo the whole thing until your happy with it. f you need to add more rivits and thing just go back down to the background layer and repeat steps 6 & 7.