Check out some of the stunning covers for the New52 Teen Titans. I think I will let a few of his pieces speak for themselves, but everyone should check out his blog for more, really - these are just a taste of his work and it is great that he has these sketches up on his site for us to admire and learn from.
I really enjoy concept sketching and thinking through ideas for characters, places and creatures - but it would just be such a treat to be able to impart this much class into a piece. Beyond the concept stage, how nice would a board game with Brett Booth art be for example ... gazes into the air wistfully ... ok onto the art:
[Brett Booth Comic Sketches vis his Demonpuppy Blog]
Plus here are two of the covers from the DC site
[Brett Booth Teen Titans covers via the DC site]