mp3 spectro: https://ya.s-ul.eu/6KbEAXpL
metadata: https://www.amazon.co.jp/-/en/%E3%83%A1%E3%83%AB/dp/B07PKN4R9S/ref=tmm_msc_swatch_0?_encoding=UTF8&qid=&sr= (track 3) / https://tower.jp/item/4855817/ (track 3)
Top diff should have density that conveys the general feel of the song. You are mapping an easy muzu (only 3/4s) but I can definitely see some drum rolls being better to be mapped as 1/4 triples. I'd regard this as an issue which affects how pushable it is. 1/4 single color triples can be added
The diff currently isn't appealing to be frank. Most parts follow voicelines purely that it doesn't seem like playing a taiko map, mostly due to long pauses between voicelines, which makes it lack of difficulty progression and intensity representation. Wouldn't be optimistic about this if the kiais follows purely the voice
For this audio its quite typically loud, not sure if it was due to the previous audio, but the volume settings right now must be buffed to match the levels. I'd suggest raising all lines by 40% so kiai is 80% (at least). Adjust the volume for spinners again after that
BG Source: https://www.pixiv.net/artworks/60095408 Bison倉鼠
As per both the new RC guideline and statement from artist: "絵師名とイラストURL付けば転載していいです" (Ok if you provide the illustration's URL and also the artist name when sharing) please better credit them in your map description
your audio seems to be at 128kbps (https://cdn.discordapp.com/attachments/781151428344676372/792822399464505354/unknown.png) but is encoded at 192. i'd suggest looking for better audio, but if you cant make sure to encode the current audio at 128kbps instead of 192 using a program like audacity