Well, I pretty much used every trick in the book on this one, and had a blast doing it. This is a 100% TGTP render with only minor tweaks in Photoshop.
Yes, I used image maps on this one, but I love the results they can give if done right. And it only took about 4 hours to render (which is better than the 80 hour jobs).
The sky is also an image map, set as the background. The sweet thing is, its possible to add TGTPs clouds and atmospheric effects as well, to combine everything for the ultimate image.