Hello xX_SacredPvp_Xx,
Unfortunately, your map is being Rejected.
The theme is somewhat original, there are a few slide/waterslide maps already, but none exactly like this.
The build isn't great, it's very small and doesn't have much detail. Try to make the build bigger, so you can add more shape and depth to it, due to the size, it also feels very cramped.
The parkour has some variety, but it is quite difficult for an easy map. Try to utilize blocks in a way that you can make fun jumps, while still keeping them simple enough so that new players can complete them without too much difficulty.
There are a lot of barriers, which makes the map a bit annoying to navigate. It is important to use barriers to patch skips, however try to incorporate the parkour into the build in a way that avoids skips where possible, to avoid an excessive number of barriers getting into your way.
Thanks for submitting your map! I hope to see more maps from you in the future