Some scene have "scene image", like sex with Bored Jumper, it`s just ... nobody wants to add that stuff, even if the game let us do that.
TBH I despite devs that "Let the player / mod community to finish the game". (Don't be Like Bethesda

)
You (The dev) are making the game, not us. It's your responsibility to provide the contents.
If fan / Community like the game so much that they want to add in contents, that's great, but that's always Additional.
It should never be the development principle, nor should it define the game.
Now if it's an indie developer that lack resources, so enable players to do what they wish that can't be provide, it's reasonable.
But It should never be expected could Improve the Game in any tangible way.
"Nobody want to add that stuff" is just an indicator the game is not really as popular as you thought.
Also I really can't recall this game hs scene image, are you referring to where they put sprites together?
Or there are full CGs, just not many?