For the last couple of months TunelabMusic.com and Roadrunner Records ran a contest to design the ultimate Progressive Masters tour poster featuring Opeth and Dream Theater. We received numerous amazing entries, but have chosen the following 15 as winners in the order I saw them.
Maria Suciu (my personal favourite)
Rolf Haug Færøy
You can see their entries and everyone else's entries in the comments on the contest page. Each winner receives a signed booklet from each bands' latest release.