Brettas...
Heinkel He111 is an H-20 variant. Additional photos and information can be found/seen in
Kampfflieger - Bombers of the Luftwaffe, Summer 1943 - May 1945 by Nick Beale (Classic) on page 329 and
Luftwaffe Camouflage & Markings, 1935-45 Vol 3 by J R Smith & J D Gallaspy (Kookaburra) on page 79. These photos name one of the three crew members as Oberleutnant Dietrich Kornblum (in the centre of this photo) , Staffelkapitän 4./KG53 and another as possibly being Major Herbert Wittmann (on the right), Gruppenkommandeur II./KG53. The aircraft was coded A1+KM, with the 'K' and propellor spinner fronts in the staffel colour of white, and the location is given as probably being Plaistow on the Russian front in June 1944.
Regards...
