Cavemate Lore/World/Character Building Questions? (Patreon)

Since I asked this for Mini-Dom and got a bunch of useful questions (that thread is still open btw) I figured, hey, why not do the same for Cavemate since I am also planning it's full (eventual) book?

Anyways, question is to folks who like Cavemate: what kind of situations/interactions/lore would you like to see more of in the series?  

I've got 4 loose chapters planned out but I wanna add a little bit of character building between the chapters for when the final book is complete. Like, I wanna make little illustrations, info graphics, or (mostly) 4komas to fill in the gaps and make the story feel more "complete" while keeping the chapter count doable for myself.

I've got some ideas of my own but I often find that y'all bring up stuff I don't even consider putting in so, it's nice to get this kind of feedback now and again.

Let me know your thoughts, thanks!