Fair enough, The position of the Cessna did not make me think it was landing, but yes, as he pilot probably suddenly pulled up to avoid a collision, it makes more sense. That said, the jumper probably had a better view of where he intended to go, than the Cessna pilot had a view of where the jumper was coming from. Were the jumper to have been a piloted aircraft, the Cessna would have had the right of way (being lower on the approach). Perhaps the piloted plane must give way to the unpowered descending jumper, though I'm not certain of my regs here, as it's hard to give way to an airborne object you can't see, as it's approach path from above is very steep.
As the Cessna pilot, I would feel terrible that the collision had occurred, though I'm not sure that I would accept all the responsibility for it...