I myself am still planning my own datesim but it takes place after the True Pacifist Route. Your backgrounds are really lovely. Even if it's worksafe and respectful to the Undertale canon.
inLove is an Undertale Dating Simulator fan project started on April 21, It’s currently being developed by a very determined cast and crew. Choose between building lasting friendship, finding love, or crushing the hearts of the characters we’ve all come to know and love!. do you wanna have a bad time? 'cause if you visit this page you are REALLY not going to like what happens next.
I have seen a number of promising fan-made projects get shut down partly through development. On the other hand, many fan games have been completed, released for free, and distributed online for many years. I chose to walk away from computer games about five years ago.
Because of this, I have missed a number of recent computer exclusive games such as Undertale. I still have an embarrassing backlog of still-unplayed 3DS, Vita, and mobile games Toby Fox allows fangames as long as they follow these guidelines.
Basically, don't reuse the raw OST, do not remake the game or anything to dissuade from buying the original game, do not sell the game, and please mention that your fangame is unofficial and link to the original game.
Numerous dating sims have been made and this one should be safe as well.