"All flesh is grass" Biblical reference to show all human life is temporary - we all die eventually.
"He has a job to do": like a soldier, the photographer had a sense of duty
"running children in nightmare heat": emotive imagery with connotations of Hell
"blood stained into foreign dust": lasting impact of war links to 'Remains' and "blood shadow"
"he earns a living they do not care": 'they' is ambiguous and could refer to the wider world.
