Painted from scratch in Photoshop CS5. I used the vanishing point filter to get my perspective grids set up and align the planes. Took days to do, including revisions etc. Original image was 10,000 pixels wide, which is a bit of a strain on my iMac. Completed months and months ago.
Created for Heavy Gear Assault - www.heavygear.com/
This image is not available to buy as it's copyrighted by the client.