Amazingly pretty and pristine art style with lots of environmental detail! Great modelling and animation work on the characters and I really like the water shader.
Sounds and music compliment the atmosphere and pace of the game well.
Being able to walk up ledges and stairs is cool, but the camera gets a little shaky when you do. Most of the other stuff that can be improved was already mentioned in the comments. I don't mind the slow movement if the intended play area of the game remains small. It can work if there's a map that takes you to one of several cozy locations where you can slowly strut through and look around.
The stunning visuals definitely make this an exciting first look into your project. It can grow into something really amazing if you keep up this pace!