I thought the dynamics of the dragon chasing the bunch of them seemed to capture the essence of people in flight from a superior menace that could actually vivisect you with one claw. That is assuming said dragon is keeping its claws filed and it has a dragonling to protect from a bunch of inbred adventurers who get their kicks on slaying dragons with d20s.
Other than that, the use of color was really quite brilliant given it was a cave setting. You could see the fine interplays of hues and shadow to bring the world of RM to life. Of course, at least the Dragon is less of a dire threat than, say, a six mile wide, 10,000 feet thick mountain from Outerspace hitting the oceans with such an impact that it would cause a huge ripple effect. And then an extinction event. Or at best, a Supervolcano decides to erupt. Either way, our intrepid trio is better off fleeing from said dragon.