https://www.youtube.com/watch?v=6tU2ZKHxuoA
The drop lacks low end.

You've improved a ton, though idk if that's a vocaloid or a real person but the lyrics need a tweak to go better with the beat. Other than that it's pretty solid

Yes, not bad at all. Even though the vocals don't sync well with the melody on some places (unless that's the genre style).

Thank you! I used a vocal synth called SynthesizerV. Its voice banks sound very natural, even more than Vocaloid imo. And about the lyrics - its based on a poem a friend of mine wrote. I tried my best to make it sound good with the melody and beat 😅

the vocals melody and beat is fine, but very obviously a fake bot rather than than a real human.

the bigger question is: did you 'play' the music yourself using synth's, or just use pre-recorded loops?

IDK what you mean by 'play yourself' and 'pre-recorded'. I'll tell you exactly what I did:
I made it using a DAW, a singing voice synth and a VST synth. I 'wrote' the song myself. The melody was originally in D min but I later transposed it to G min cause it sounded better. I didn't play the song in real time though, since I neither have a midi controller nor the expertise.

i mean the backing music, it sounds very professional, so did you 'play' the bass/drums/synth using synths? if so then well done.

edit: without midi you may have used a step sequencer to 'draw' the notes instead of playing them