Hi! I'm impressed by how much depth you managed to add in just 4 days. The storylines and coming back at certain times are very cool. I think it needed to be clearer the concept you're trying to pass the time, as in a lot of games you're trying to preserve time so you can complete everything.
The diversity of art for all the areas was also impressive.
Also, the music didn't repeat so most of the game had no music.
I think simplest improvement would be to add something which highlights things you can interact with because you kinda had to spam J while walking around. Maybe a glowing border would work.
Being able to see how many coins you have and what items you have would also be nice.