Very, very nice game. The atmosphere is just lovely and fits together very well. I really like the music, sfx and the noises the patients make when speaking. Reminded me a bit on Banjo-Kazooie :D
You integrated the theme very well, while game play itself is really simple, the story is what the game makes unique and lovely. I think there is much depth, but on the other hand not that much to do. The stories are what kept me playing rather than the reputation/ patients etc.
The art style is really well, although I feel like there are some inconsistencies in chosen colors: Some objects have black outlines and look "flat", others appear in much depth like the lantern, other have no outline at all etc...also regarding colors the game would benefit if you use a more constraint color palette I think. But these are just personal preferences, and minors as well!
What needs improvement in my opinion is the chosen font style...it can get quite hard reading the text with this style. I think you don't need to stick to a pixelated one.
Overall: Very good entry!