Hmm, that's very interesting.
When I'm planning my horror games I don't usually think about what type of horror game I want to make, I more think about what type of horror experience it will be in general.
Because in my opinion there are many horror genres that has not yet been explored by video games.
I think it would be helpful if you also made a diagram of general horror elements. (like fear of the unknown and fear of being watched & etc...)