Hi
@CaliaMoko - It's a good song, like the melody line you've found...
1. OK
2. Yip, it's enough of a song.
3. Defintiely, there should be some harmonies in there, use V1 to establish the melody line, then use V2 to bring in a harmony line, or 2 (plonk 'em L and R) and it'll thicken it out nicely, maybe try and avoid having them separate all the time, i.e. 3rd about and 3rd below, it seems to sound better if they cross over into each others's territory, weaving, as it wre, around the core melody.
Another srategy would be to pick out the 'hooky' lines like 'frantic antics' and put harmonies just over those...and repeat it over other areas of the song...such as in V2 add 'frantic antics' x2 in the space at the end of Line 1 ...what's all the hurry .. frantic antics...(but as obvious backing vocals)
4. Regarding the lyrics, I just thought the 'Wait, just wait' was a waste of an opportunity, it didn't match the creativity level of the rest of the lyrics, I know your'e into prosody, I'm sure there's a really skillful line that would fit in there, even replacing just the 2nd line might work.
Hope this helps Vicky