hi all
in fact there were german POWs at llanbedr there is written documentation for this, i think they were there at the end and after the war, also maes artro wasnt the waaf,s section this was opposite (now sterling exhaust) maes (at least in 1943-44) was the naffi's, cinema, shower block, kitchens and no's 1 and 2 dinning hall as well as a decontamination block, this info came from an ex-servicemen of llanbedr 1943-44
as for the picture on this thread, the "orbs" are most probably airborne particles looks like moisture which is too close to the lens and is relfecting light from the flash into the lens
cheers