Techscape2  

I started this one as a black&white sketch but somehow I found it really dificult to add color later on since I messed up my layers. Man, do I love that paletknife-brush, especially with an art pen. If only Wacom would update some decent drivers for it: it was really buggy in CS4 so I switched back to CS3 which improved things considerably, not to mention much less brush lag. No rotate canvas on my touchring though.
This is the B/W sketch: