Spectacular model!
But, as Steve said, the white trim ring around the outer headlamps is glaringly missing. And, as Sam pointed out, the top lamps on the rear fenders of a 440 should be backup lamps. The only '62 Dodges with four taillights were the Polara 500s. Note the significant differences in trim appointments on these Polara 500 examples.
Here's the Dart 440, like your model:
Oh, yeah. Those white accent rings on the outer headlamp bezels? All Darts and Polaras had them, regardless of body color. Here's as good a pic as I could find quickly: