Island altogether. I personally created the island, and back-most building, but I did not create the front 3 buildings, only did a polish pass across the board to ensure all assets were working together stylistically. Those front three buildings were from
Market building for the event
Island layout without buildings.
Screenshot when the event was live in-game
DragonVale - Winter Event
This is the environment art from the DragonVale winter event. I personally created the island, and back-most building, but I did not create the front 3 buildings, only did a polish pass across the board to ensure all assets were working together stylistically. Those front three buildings were from another of the wonderful artists at Backflip.