Distance isn't apparent
I think that from reading the note, I've discovered the real issue - you've not taken care to make the explosion distant from Ross Fenton. Some detail in the foreground, to imply that it's behind stuff could help you here. Search for perspective online and you'll see what I mean, hopefully.
It's a decent picture of Ross, but I've got to ask about the 1980s shoulder pads that he seems to have in his jacket. His eyebrows look truly massive, which is a worry for something like this picture. Put a little less emphasis and you'll see more results, as the face softens slightly.
Finally, the explosion needs some work. Writing "BOOM!" in the mushroom cloud couldn't make it any more tacky, if you tried. The use of colours was good, but I'd suggest that you use greys and browns for the dust, with a rippling explosion within, representing the fire beneath the dust.
[Review Request Club]