Great start on the project! Your work is quite promising, and I'm excited about its potential. I have a few thoughts that might help refine the experience further. Firstly, the movement controls seem a bit unbalanced. It would be more comfortable if WASD keys were used for navigation, as the current setup with slow movement via arrow keys contrasts with the ultra-fast mouse movement. Also, there's an issue with the door on the right in the starting area that seems to break the game, which might need some attention.
Regarding the game's pace and exploration, the character dialogue is incredibly charming and adds a lot to the experience. However, I felt the brief storyline progressed too quickly, teleporting me from one place to another without much chance to explore on my own. There were moments where I was forced into rooms and would have preferred the option to exit and return later. This aspect could be tweaked to allow players more freedom to explore at their own pace.
Finally, the game's atmosphere and immersion are impressive and definitely a strong point. If you decide to expand this into a full-fledged RPG, I believe it has the potential to be truly amazing. The foundation you've laid here is solid, and with some adjustments, it could evolve into something exceptional. Well done on what you've achieved so far!