Hello,
Currently on ebay is collection of 10 aircraft photos both British and German of varied quality and interest at:
https://www.ebay.de/itm/393497842147...4AAOSw1TZhErFg
Among the aircraft shown are Royal Aircraft Factory F.E.2b 6934 of 23 Squadron
Royal Aircraft Factory B.E.2c 2049 of 13 Squadron.
Is that a Halberstadt B.I between the trees?
Regards,
Clint