A panel from OMAC: One Man Army Corps, vol. 1 no. 2, 1974 by Jack Kirby (1917-1994). Inked by D. Bruce Berry (1924–1998). No colorist credited.
Art by Jack Kirby (et al), 28 Aug. 1917-6 Feb. 1994. The images in this post come from numerous sources, but the majority come from Mars Will Send No MoreMars Will Send No MoreMars Will Send No More, Cap’n’s Comics, and The Jack Kirby Museum.
And here’s a topless Kirby at work on the painting: