This appears to be a post-war photo of Henry after he has lost his left arm (note the empty sleeve). He is holding a grenade by the pin in his mouth, a pistol in his right hand, a Sten gun tucked under his left arm, and a Bren gun held by his right elbow, pointing down to the ground. The location could be in Oosterbeek?

Photo courtesy of Patrick Pronk, via Robert Hilton.