Thanks! Unfortunately, no BHS photos.
I live in a top-floor Brooklyn apartment with floor to ceiling, West-facing windows that act like giant soft boxes. I set up in front of a window using a tripod with a horizontal arm to allow "top down" photography. Cameras were set on a bar stool with foam widgets to level and stabilize them.
Once I got a framing that I liked (I love that the GX9 can be set to a 1:1 framing. I like to frame in camera as much as possible. All of the collage images are completely as shot. No post cropping.) I hand held some cards to reflect (or block) the window light into (or out of) areas I wanted to highlight (or darken). I randomly moved things around while looking through the viewfinder, and took a few timed shots of each setup while positioning the cards in different ways.
I'm very seat-of-the-pants, even in my professional creative work, so this is how I roll!