No interactions present.
I am pleased to see you have got the "gizz" of caddis and agree about most having the same general stance.
I reckon this is probably Micropterna lateralis. There is not a publised illustration I can direct you to alas, I just named it from experience of the species over many years.
Ian Wallace, UK Trichoptera Recording Scheme
Ian, I see you have added a new ID to this observation, it is not the likely ID yet as some of the others have to shift to agree with it. Is the pale spot diagnostic of this species?
Lat/Lng: 51.637646, -1.985967
OS grid ref: SU010932