A couple months ago Kate Irwin asked me to do a cover for Dragon Magazine #418 (which would also be paired with an article by Jeff LaSala). The main subject was a Tarrasque, a gigantic horribly destructive creature. The art description was very brief, just a few reference images, and the request: "we're looking for a Godzilla moment here". This ended up being ridiculously fun.
Mmmm... city guards... crunchy on the outside, chewy on the inside.