You could add "poets the fall original soundtrack video game music vgm" to the tags.
Sorry, I think I edited a mistake in my tags right after you added them lmao. You should replace "official" with "original". My bad.
You could set the vertical offset of the background to around -100 to make the point of focus more visible during gameplay.
Good map
Just one issue
"bg.png" has a file size exceeding 2.5 MB (2.58 MB)
Check Mapset verifier : https://github.com/Naxesss/MapsetVerifier
Consider changing the extention from png to jpg or using this one : https://cdn.discordapp.com/attachments/738344728487133226/986686795154616360/bg.jpg
Also consider deleting old background form the file.