Hello kittin637,
I am sorry to tell you this map is being rejected. The theme is not original, we have many maps that are themed around rainbows. There also isn't really a main build, as the map is just a rainbow striped tower. In the future, try to have a main build or structure that the parkour is then placed on, around, or inside.
The parkour does not fit the expert or insane difficulty, and the majority of the parkour on this map suits an easy or medium map. The jumps are very repetitive since each layer only uses one or two kinds of blocks. I would recommend reading the map requirements, as well as our wiki guides to mapmaking (you can find links to these in my forum signature). You can also view examples of accepted maps in the Accepted Maps subforum, or at /warp beta on the server.
Thank you for submitting this map! If you have any questions, feel free to message me here on the forums, in-game, or preferably Discord.