The first two photographs are my attempt at recreating natural-looking light using strobes. Both these photos are entirely artificially-lit (obviously excepting the view outside the window in the first shot). I think this was a successful experiment in artificial lighting, and both look very credible as natural light.
These shots are variations on a similar lighting setup with an octabox camera left with another strobe for mild fill:
As I packed up my gear, this nice shot came into view:
