After Roy Lichtenstein, after Russ Heath.
"Whaam! 1963 is a large, two-canvas painting by the American pop artist Roy Lichtenstein that takes its composition from a comic book strip."
Currently on display at the Tate https://www.tate.org.uk/art/artworks/lichtenstein-whaam-t00897
"A more personal comment on Lichtenstein's relationship with the comics industry comes from veteran artist Russ Heath, the creator of the original comic panel that Lichtenstein used in his famous painting "Whaam!" In 2014, Heath, who is now 91 years old, drew a short strip about his experience having his work appropriated by the artist while struggling to make ends meet."
"Now semi-retired and living on a "fixed income," Heath says he survives with the help of the "Hero Initiative," a charity that supports comic creators in need. "Roy got $4 million dollars for it," Heath said of "Whaam!" "I got zero.""
Read more: https://www.smithsonianmag.com/smart-news/comics-behind-roy-lichtenstein-180966994/#AE5UKt6cU5GML9Oj.99
