The movement feels too fast as if I'm playing the game at 5x speed.
Consider adding a panel whenever you have dialogue with a character in the game, this just makes your dialogue more readable to players.
I like the simple health bar design.
The world design and skybox certainly look amazing.
When I tried to move towards the cube with spinning (mini-pillars, I guess?), I got pushed to its side so I don't know if it's intended or a physics-related issue.
Overall, the game doesn't look too bad. Although, this jam excepts you to have a leaderboard system and I couldn't see one.