Finally managed to transcribe this!
https://musescore.com/user/12518851/scores/2674751
My original intention was to imitate a valse, but around the middle mark I started abandoning that idea. I know there are some really weird stuff written here, but bear in mind that I composed this piece over three years ago, before I had any intention of transcribing my music at all.
Also, some of the stuff I tried to put in the score sound very awkward - mainly change of tempo and grace notes. MuseScore is terrible with grace notes, anything other than an acciaccatura takes up like 2 beats for some reason, so I had to put acciaccaturas to make it sound somewhat audible. There are also some accelerandos, ritardandos, rubatos, etc. that are completely lost in the score and I feel like I have no way to properly put them on paper.
Anyway, any feedback is greatly appreciated!