So I checked the map out, and though I like the parkour I do feel it was a little unbalanced, It was a fun map and I liked the jumps. The parkour was enjoyable and flowed pretty good, but I do think that some of the jumps felt like they could've been on an insane map later in checkpoints. There was an X-facing cake ne-up at the very end of a checkpoint, and If you didn't have prior knowledge of the map, you wouldn't know there was a checkpoint on the opposite side of the Neo before jumping. So some checkpoints could be moved. I agree with dingus on a few things too. I felt myself lost a few times, and If I couldn't just fly back after falling trying to figure out where to go like in map maker, that could make the map very frustrating. Another thing was the map design. Though I think it looked pretty nice, I do think there are just so many maps on the server that have city block/building look/theme to them. Also, when you think of metropolis, though the definition is technically capital/chief city, the first thing that usually comes to mind is a sci-fy futuristic city. If the build was changed to encompass a more futuristic approach, I think could set this map apart from the rest and make it feel very original and enjoyable. In its current state however, compared to other experts, its parkour feels mixed with difficulty level, which was enjoyable, but if you gave more guidance on the map or said you can click a checkpoint from this location, it could go a long way. So my final take is that I do want this map accepted in the future because I liked many of the jumps, I don't think this map in its current state is unique enough or clear enough to be accepted. Good luck with your map. Keep working at it man.
Edit: The heart sign/billboard thing looks pretty cool.