Alrighty, just finished uploading my album o' pics. Most of mine are from the Madoka, Persona @ midnight, and Fate/Zero gatherings. If you see a picture of yourself that you'd like the original to (4000x3000 px), by all means please PM me your email address and I'll send them to you.
Sakura-Con 2012 photo gallery
Feel free to tag yourselves as well if you're a fellow G+ user.