Three exposures

Last week's assignment, on manual mode, was three exposures with different aperture, shutter and ISO combinations. The light was unhelpful at  my chosen spot, and I couldn't manage the extremes that I wanted. So, in frustration, here are the three images reprocessed in different ways.

It's been educational to push the exposure limits further than I usually do, but I'm looking forward to the non-technical section of the course starting next week.

(See the extra for the originals:  wide aperture + fast shutter, small aperture + slow shutter, small aperture + fast shutter + high ISO.)