No interactions present.
Thanks for the ID, I wasn't really sure where to start (I didn't know whether it was a Hoverfly or not!).
I have had a look at the other photos I took that day and I don't have any that feature the fly in the top left of the picture, so if it looks interesting it may be the one that got away!
Lat/Lng: 52.7744, 0.5045
OS grid ref: TF690225