I love the art style, and the sound effects are really nice too :) I struggled a little in the very first room, lol. I managed to get the door open in the end though :D it might be a good idea to hold the players hand a little more in those first few minutes just to help get them out of the first room and to prevent any early onset frustration.
I actually like this game, it has a nice calming feel to it and the controls are super smooth! Even the dialog boxes work nicely with the sound effects matching the tempo of text, as well as the ability to skip ahead if needed etc. Overall, great job with this game :)