Those are gorgeous! Thanks for sharing them.
That sounds like a great con. Both P. Craig Russell AND Kevin Nowlan. Two of my favorite artists.
Wow. I can't believe you've managed to keep that poster intact since high school. Congrats!
Yes, I've found for the more well known artists, you almost have to contact the artists before the con for a pre-con commission. I've gone into shows as soon as they opened, and some artists already have their commission lists filled!