This is one of my favourite ever pages from a superhero comic - from Captain Marvel #17, October 1969, courtesy of the Giant Size Marvel blog, which has been celebrating the art of Gil Kane.
Kane's work is instantly identifiable from the absurdly over-defined muscles, the exaggerated lines of eyes and cheekbones, and the wing-like flicks of hair he liked to give his characters. As Richard Guion says, his re-design of Captain Marvel's uniform - the deep blue and red, the exploding star, the nega-bands on the wrists, and the half-mask showing off the silver hair - is the last word in superhero chic.
Kane's outstanding work was on Captain Marvel and Adam Warlock, a golden-skinned Messiah figure with a soul-devouring gem in the centre of his brow. In hindsight, it's interesting to note the political undertones in both characters. Mar-Vell was, you'll recall, a warrior of the Kree, blue-skinned extraterrestrial racial supremacists, suspect because of his pink skin: perhaps the idea of a white man being a racial outcast seemed radical back then. Warlock was a kind of perfect human, created by rogue geneticists, and then endowed with godlike powers by the High Evolutionary (a Dr. Moreau knock-off whose main hobby was turning animals into man-beast hybrids via a "genetic accelerator"); the whole thing was a very weird sci-fi amalgamation of the New Testament and Nietzsche. It makes a sort of sense that Kane later drew a comic-book version of Wagner's Ring.