Build: The build is not good, and this is disregarding its unoriginality as it looks like other maps on our server. It's just 3 differently colored spheres of varying sizes with some glass panes surrounding them. It just lacks focus, detailing, shaping, and creativity. It's not a good build, you must address these issues in the future.
Parkour: The PK was way way way too long for an easy map but easy enough for an easy map, so you definitely have to cut like half of the jumps to fit the difficulty (we're looking for 20-40 jumps for easy maps). Furthermore, the parkour was incredibly repetitive. This is clearly shown by the part in the parkour where it's just jumping from pane to pane for minutes. It just wasn't fun to do. You need to use a wider variety of blocks/jumps in your parkour so that it is enjoyable to do.
I hope you take these criticisms into consideration when submitting maps in the future, good luck!