For what it’s worth, I ended up turning a slight variation of this pic into a play-raw thread, if anyone is curious to play more with a large image.
Thanks again everyone for your contributions here, I learned a lot and it was amazing. Special thanks to @houz and other Darktable developers for their amazing work. It’s great to see you participate in the “user-land” discussions here and I really appreciate the time you take to actually do this.