This soldier with the wide smile is surrounded by a crowd of one man in pork pie hat and four women (in the shot -looks like there were more people including the photographer). Were they congratulating him, showering him with thanks? We will never know, but what we know is he ate up all this attention! (With his eyes on the brunette closest to him.)
The soldier’s wearing a Brodie helmet -with the camouflage net which was a lot less common. Those helmets were issued for both world wars but to the British, Australian, Canadian, New Zealander and South African troops during the second. Americans wore the more rounded, iconic M1.
RPPC: Divided back.