From Tsukino Con 2012!
The top picture features Rainbow Dash with an Applebloom and Scootaloo in the background! The bottom picture features most of the ponies (minus Scootaloo). I was pretty excited to see some CMC cosplay!
Top Picture: Rainbow Dash taken by geoectomy
Rainbow Dash cosplayed by Sparks-McLain
Bottom Picture: My Little Pwnies taken by Sparks-McLain
Pinkie Pie - ?
Rainbow Dash cosplayed by Tess
Rainbow Dash (w/ goggles) cosplayed by Sparks-McLain
Sweetie Belle cosplayed by Willa
Derpy Hooves cosplayed by SkullTheKid
Applebloom cosplayed by Deidre
Big Macintosh cosplayed by BestFairyEver
Applejack cosplayed by legendsofzeldafreako
Fluttershy cosplayed by Keome
Rarity cosplayed by Squoxcoon