I think the overall design is pretty cool. Seems like a decently difficult fight (not too hard, but would definitely be fun). I liked the idea of random floor patterns; keeps people on their toes and you can easily tell who isn't paying attention.
Thanks. Yeah, I just tried to think of something fun, that I would enjoy playing through. Now that I think about it...WoW had a movement boss similar to this in Naxx. With killer green smoke, can't remember the boss.