I enjoyed the idea, i expected more time based games in this jam. so with the theme you are good.
The colors (and maybe its because of lighting) seemed not to really match (the gray walls with gray grid). i expect you used it for prototyping and ran out of time to change them.
My advice would be to start with a bit smaller levels and make them perfect before you make larger levels.
Only other thing i really noticed was that mouse sensitivity could be a bit higher.
For a 10 day jam this is a very good attempt though