Got the prints back from the aforementioned trip to the Botanics, although there were only two that were really even slightly interesting:
this sundial with superimposed flowers
And this one with a strange flower and superimposed lacy plants in the bottom right.
However, I also put in a film that had been in the camera and exposed, but which I couldn't remember actually taking. This turned out to be shots of the park in fog and worked rather better:
A memory of leaves (I quite like this one - it has a vaguely tintype feel to it)
Swan on ice