Excellent technical level, good models, clean renders, amazing camera angles, good music, etc.
Now, you wonder why a 2 if I give him so much praise, simple, the story,
there is no construction, the MC is a Mary Sue, everyone wants with him from day one, the script is very inconsistent, forced and illogical, simple example, you can see tons of oral sex, but the penetration is too far?
Beyond this, the story is poorly told from my point of view, there is a mysticism with the MC and the guitar, several flashbacks that instead of helping, make the story more entangled and in the middle of this is the semi-goddess characteristic of the MC, everyone wants to have something sexual with him without prior explanation and without build the moment.
Simple advice, if you want to slow burn in your story and with certain characters, don't put them in sexual scenes so early and doing illogical things like just having oral sex, wants to place eroticism, create new secondary characters that fulfill that function and let the MC develop a personality, the fact that he is the protagonist does not mean that he has to have everything easy from the beginning, that is a serious mistake, the character that should have the greatest learning curve is the MC himself.
Good luck, you're still in time to improve the narrative and make your VN generate more attention, as a last tip, try to do it by chapters, take your time.