Update 1/26: We've received a large number of applications, more than enough to find the artist we need.
I'm the lead (read: only ;)) dev at Grid Sage Games, working towards releasing Cogmind (http://www.gridsagegames.com/cogmind/), a modern take on the traditional roguelike genre. Cogmind was already named one of the upcoming Best PC Games of 2015 by Rock, Paper, Shotgun (http://www.rockpapershotgun.com/2015/01/01/best-pc-games-of-2015/10/), so we're on the right track ;D
In addition to the existing ASCII style, we'll be needing a tileset to make the game accessible to an even wider audience. This job's specifications, considerations, workload, requirements, etc. have been posted in a centralized location here: http://www.gridsagegames.com/blog/2015/01/wanted-pixel-artist/ (http://www.gridsagegames.com/blog/2015/01/wanted-pixel-artist/)
If you may be interested, check it out for all the details and more related images.
A general visual introduction to Cogmind:
(http://i.imgur.com/s18155Y.gif)
Animated ASCII Title Logo
(http://i.imgur.com/KReTuYN.gif)
Destruction, Animated
(http://i.imgur.com/jPRoYjN.gif)
Examining/Managing Parts (UI excerpt)
(http://i.imgur.com/XGmVmuV.png)
Activating a Terrain Scanner
(http://i.imgur.com/HYQL8JB.png)
EMP Explosion
See the Cogmind website (http://www.gridsagegames.com/cogmind/) for much more.