Loveeee the environment, it has a lot of atmosphere to it! Beautiful choice of audio too, it makes it feel really realistic. (˶ˆᗜˆ˵)
I would've loved to have seen some narrative told through dialogue every time we looked out the window, or through a diary/scratchings on the walls/guards visiting.
It somewhat reminds me of the old indie game, Presentable Liberty, but with a twist as the outside world is so pleasant and inviting from the spring atmosphere.