|NOW FULLSIZE YES|
IN CANTERLOT CASTLE
That's totally season two episode one (According to the numbers in the direct link:
mlp201_Cast_worried.jpg). Lets flip out!
(This is from a Discover press release, you can find it here! Thanks to Andy for the heads up )
Apparently Twilight Sparkle can clone herself too. I'm not sure where the rest of the images come from. their labels are all over the place.