Rock the dinosaur and Daniel descend the steps at Sloane Square Tube Station

Rock the dinosaur and Daniel descend the steps at Sloane Square Tube Station, 

an illustration by JVL in Dinosaurs Don't Die by Ann Coates, 1970, page 55.

The challenge, when drawing the illustrations for this book, was that the locations in the story were specific ones in London and most of the action took place at night.