Its a nice game! I like the style of dialogue and the map design a lot. The art is also nice!!
The only suggestion I'd make is to make the camera centered on the player or rather not move when player is at the edges and perhaps give more direction to the story, but that's about it for the short term!
If you plan on taking it further, I'd recommend adding simple SFX and music to certain stuff, maybe footsteps/dialogue or some basic background music, it would help keep it immersive.
Good job on this though, its great!