Once again thanks to Bryan on Tumblr for this.

Korra

Along with the image Bryan said the following

Korra, upset with someone off-screen, yet pleased with her new Book 2 shirt.

To me the setting looks like one of the water tribes, perhaps a place similar to the Northern Water Tribe banquet area that we saw at the end of Book 1 Water.

Thoughts on our 3rd Book 2 image, they are coming out closer and closer together, hopefully that is a sign.