HR has a bulge on the bonnet and also if you look at the interior shots, the hazard button is just in front of the gear knob. That's a quick simple way to tell from pics.
Watch out for cars who've put the bulge bonnet on their car. Hence why J said look for both things.
If there is a picture of the engine, then you can see that the HR has two air intakes, whilst the others ( DE & DE RevUp) have only one.