first i selected part of the castle and then flipped it
step 2 of 7
then add more castle and flipped it
step 3 of 7
add more castle
step 4 of 7
and a little more castle
step 5 of 7
then i added a white circle and changed the opacity to give it a glass look. then i added part of the frame and used the warp tool to fit it to the circle
step 6 of 7
then i added the snow
step 7 of 7
then i added some details with the dodge and burn, some levels, and distort spherize...