As a child I tuned in religiously to The Creature Double Feature on WLVI, channel 56 out of Boston, and each week I'd also draw the monsters featured in the various movies shown. In a lack of judgement/foresight, my high school self tossed out the entire thick stack of drawings. One managed to slip through the cracks and it is the only one of those weekly drawings to survive. Seen below is Reptilicus in all his glory.
Based on the drawing style I'm guessing this came from late second grade, possibly third grade. It's not too bad, not terribly off model even though everything seems to be occurring on the same plane. I'm not entirely certain if the curved lines behind Reptilicus and the building hiding him are supposed to be rebar, or Reptilicus' wings.
After all of these years, I thought I'd tackle Reptilicus again in my current medium of cut paper. I would have loved to have recreated the scene entirely, but time was against me. I think I still like the drawing above better.
Reptilicus (1961) Cut paper.