It's occurred to me that this print also has a claim to be the most appropriate one from my range for these times.
Dennis the Menace is telling his hound Gnasher that he's bored. The print is taken from a comic in the 1970s - it's the first panel. DC Thomson, the Dundee-based publisher of The Beano, lent me the actual colour separations they used to print the comic 50 years ago to make the print.
Here it is: https://thecomicartwebsite.com/products/dennis-the-menace-runs-on-red-bar?_pos=2&_sid=e6ecc0b2f&_ss=r