I have been working on The Mermaid’s Mystery, a project which I had been planning for a while after a suggestion from another author to write a mermaid game. 
Progress is a little slow, since work is crazy busy again, but I’ll see how much I can get done for Introcomp this year, where I’m aiming to enter a 30-40k introductory portion of the game.
Although I’m still wrestling with whether to make this thing borderline SFW or to pull all the stops.
Just finish it. As a general rule of thumb, more content is better in choicescript town. The first post is critical for building interest in your WIP, and more content means more stuff for folks to chew on.