It would be three, but one of them is in the wrong orientation for most desktops… Also, given that very few monitors are in 2×3 orientation, I suppose it’s unlikely that any of these are suitable.
I could crop to 10×16 or 9×16, but I like them like this, so apologies for the false advertising.
D7000. mamiya/sekor 50mm f/2, reversed. ISO400, AP Mode, f/2, -1EV. Modest processing in Lightroom.