Haha, this seems like fun. I'd be interested if you're offering.
-Text at the bottom and color of it[such as Kumoricon 2012]: Nothing fancy, just something like "Kumoricon 2012 cosplays," you know?
-Characters and series they're from [if you have specific pictures of them you want then also include a link to that pic. also, if there is a specific outfit they're wearing then please state that too]: Luxord from the Kingdom Hearts series and Shizuo Heiwajima from Durarara!! They're both wearing their normal outfits, and please, no yaoi pics (I know there are quite a few of Shizuo and Izaya...)!
-Color of the outside rim [mine is black]: I've no real preference, so I'll just give you a couple of my "good" colors and let you choose. Green, black, blue, white. Most other colors just don't seem like they'd work that well.
-Other text [if you want it to say the name of each character, Day 1, Day 2, photoshoot, etc. above specific pictures] and colors of the other text: If you could, would you mind placing Luxord on the left and Shizuo on the right, and putting "Beard" under Luxord and "No beard" under Shizuo?
If you need more clarification on colors (which background you want to use, or what color the text should be, for example) or anything like that, please let me know!