One of my favorite artists to get something from at conventions is Joe Pekar. Joe is a super nice guy and an amazingly talented artist. At this years Pittsburgh Comicon, I got not one, but two beautiful sketches by Joe and they turned out to be two of the best I got there. Joe's strong point is definitely women and I don't think he can draw an unattractive one even if he tried. I love his use of color and his marker technique makes it look like he painted them. If anyone ever has the chance to meet Joe and get a sketch from him, you have to! But don't take my word for it, just look at his rendition of Rapture from SENTINELS here with this post and look through his gallery at http://www.joepekar.com/ .