This was probably the biggest assignment we had to do back in the first year.  It started with a 16 field Layout on animation paper. We had to use lots of reference material to make sure our historical architecture was correct. My ancient civilization was the of course the Mayans, who are experiencing their 4th alien contact in the picture. After we were done drawing we had to bring it into photoshop and paint the sucker.  being only 2 months old in photo shop experience at that time, that was my favourite part.  Then we got to bring it into after effects and pan it with a moving foreground object to give the illusion of depth.