More like only 2 of them are not done right now. Nu Metal City has majority of the groundwork and content done for a game that I considered not complete. It is very open-world.
My other projects are worth looking into because each one has it's own type of code and varitey on UI and Gameplay.
If you are serious about learning renpy, it will do you good to learn how to change things up and use different UI and gameplay implementations. Otherwise you will get stuck and locked into one type of gameplay which will not be good for the long run if doing this for profit.
The Introvert Witch is a simple project compared to the others. Right now I'm doing a little update to improve it's quality of life. It is complete but I do want to polish it up before moving back on to another project.
Why not check out my learning page for some Ren'py tutorials?
https://lord-voldy-2022.itch.io/dev-kk-renpy
