TwiTia is my one of my favorite shipping couples. I love how playful Twi looks. She is just so happy to have this time with Tia.
As someone pointed out and I do agree. Tia looks a bit tired. Then again she is the ruler. She has a lot on her plate. It's moments like this with Twi that she can relax and release some of that build up stress.
The only thing I thought could use some work is Canterlot in the background. It could use a bit more substance or taken out as it is not needed for the picture. Just looks to ghostly, even if it is in the distance. But this is a very small detail that does not detract at all from how AWESOME this picture is. ;D