Hi i play the GOTHCUCK-0.6-pc Ultimate version, and i think you do a Amazing work with the last dress room scene you manage to make the perfect trill with the narrative, the sounds effects the music and the idea of the silhouette behind the curtain was exceptional.
A couple of ideas i have i think can be amazing is more scenes in this location later in the game when she want to return to you to "buy" more stuff and you can make endless good scenes until the character that only conform with peak the scenes in negation maybe reunite the courage to confront her etc... That way you give the player more trilling and exciting options to choose. And for your audience be more wide (more people to support you) the people that dont like ntr or cuck generes you can make like a dlc for example: when the character find himself in the zenith the despair after all the cuck and ntr content you like to make the character find a way to go back in time ( a good idea for that can be he find a genius lamp in a museum when the goth girl have a crushing bukkake with a campus scholar team or something like that, and when he see such crushing scene that put the final nail in the coffin where the mind and heart of the chararcer is, he run his way out of the situation full of impotence and anger find the artifact and wish to go back in time with the most Alpha dick) to orchestrate his final revenge with not only the goth girl but every one who fucked her too like for example fuck the wife and daughters of the cashier in the store, the mom of the black "friend" etc...
That way you can make the project enjoyably for every person who want Cuck, Ntr content and Alpha come back protagonist and in the process people maybe find fetishes that they dont know to have haha.
But that is just my point of view for the years i being observing this industry.
You are a Wonderfull Human Being and i Wish you the Best remember always Stay Healthy.