HEATHER GATLEY

I am always jealous of these pretty linear sketchy styled illustrations: a lot of people seem to work successfully in this style, I think it's great.
Heather's recent clients include: Waitrose, The Times, Penguin, Harper Collins, The Guardian, Agenda Design, JBA, the AOI, Microsoft, Inside Housing magazine
http://www.heathergatley.co.uk/

Jace Wallace

http://wakkawa.deviantart.com/

Such an awesome digital painter: and still in college, too, at Ringling.

Nancy Gibson Nash

www.nancygibsonnash.com

Myke Amend

http://themiskatonicarchive.com/lovecraftian/

Chun Eunsil

I'm utterly enamored by the style and elegance of these utterly cute illustrations. The use of space (open space in particular) and angle/perspective is stunning.

http://www.chuneunsil.com/

Leslie Clerc

http://www.leslieclerc.com

Playful and pervy, and really great at balancing very active, busy, colorful compositions in a considered and well-rounded way.  Also, a variety of mediums.  Very clean image execution.  I especially like the photos of the toys with the illustrations.

Elizabeth McGrath

An old love/favorite/role model in all things glamorously sexy and dark and diorama.  Love her fancy scripting and detail, and her strange taxidermy creatures. 

http://www.elizabethmcgrath.com/