Hello opmuz,
I regret to inform you that your map is REJECTED.
The THEME of your map is unoriginal as we already have a map based around a prison (Prison). Before creating a parkour please make sure to check out this template here (link on here) to see all the maps accepted on the server!
The BUILD of your map is a problem. The inside of your build is a bit plain, try adding different block textures and details. You can also enlarge the build to allow room for the needed detail. The outside of the build is not that attractive. When creating a parkour map make sure that both the inside and outside are decorated.
The PARKOUR of your build fits the difficulty and length for an easy map, so good job on that! Your parkour is lacking variance, only things that are incorporated are regular jumps, cobblestone walls, and slimes. To add more variance, try adding more jumps with unique blocks like pots, water, heads, vines, etc.