Hello ecde,
I regret to inform you that your map is being rejected.
For the theme, try to have a theme that you can represent in a detailed build with lots of details (An object from a video game or a character from a movie, for example.) Likewise, you should also have more detail in your build.
The parkour is repetitive throughout, so make sure you incorporate other types of jumps throughout your entire map. This map does fit an easy map though, so good job on that.
Thank you for submitting this map, I would love to see more submissions from you!