Hey Fercitoo, glad to tell you your map has been accepted as a Hard!
The theme is pretty original, although there is a map with a pretty similar theme ("TestFacility"), try to be more careful next time. The build is not bad, it's a little plain from the outside but the mouse and the scientist look good. I quite liked the parkour, it was varied and fun and matches the Hard difficulty well. However, I did change a couple jumps since using buttons and levers isn't allowed in maps (causes lag) and there was a single iron bar jump that I changed to avoid that.
Thanks for submitting, I'd love to see more maps from you!