For a first game jam project it's pretty good. There's movement, battling, levelling up, dialogue and overworld map. I definitely saw the inspiration when I saw the overworld map.
Rpg's are tricky because there's a lot of different systems and mechanics working together. There's many games which only focus on a few of these. I'd recommend you cut it down in scope, get all the basics completed. Then you can expand upon it later
From what I played, the only faults I could find was an odd collider on the rug inside your house and being able to go past the camera bounds in the overworld map. Keep it up :)