Finally completed after being stuck at the WIP stage since last August. WIP version : [link]
I used Photoshop and Cinema4D(only a little bit). The end result is a combination of at least 20 different stocks and digital painting at other places. It was originally meant for gray scale but I decided to color it during finishing. I hope it qualifies as colored, not just monotone.
This is also the first finished artwork of 2011 for me, coming more than 3 months after the last one.