I don’t really do stills much any more. When I had a smugmug gallery, there were a great many. I shut it down as a budget item.
Once in a great while I will send something to Zazzle for the store.
Most everything else is video for Shutterstock and Fotolia. I miss producing things from the decade I was in TV but not much else. It is a hobby that sometimes makes a few bucks. 4K format has a good payout assuming I ever sell one. Only had it since Christmas.
Thanks.