I still don't know.
With the mods and experience I have now, I could make much better images than I do for Solvalley. If I make some good girl models and start a new game, I could probably do something with high quality (by Honey Select standards). Probably comparable to the best games made with these graphics today.
But I don't feel so comfortable doing this. What bothers me is not stealing Illusion's assets, but the fact that Honey Select as a tool for creating your own game is so widespread today that it's not that cool anymore. When I started with Solvalley few games did that, and I didn't even know they existed. Now I don't see much point in making a game where the sex animations, for example, are all the same as dozens of other games, because they are all stolen from the same source...
I am currently inclined to never use Honey Select after Solvalley again, but I don't know what will happen in the future.
An alternative that has come up now is Blender 2.8. This program has a rendering method that is the same as in game engines (like Unity, Unreal, etc) that renders images in real time. This means that I could use the same technique I use in Honey Select without having to spend hours rendering ray tracing stuff.
But I will leave to think these things later. First I have to finish Solvalley and then HS Tutor.