I cited Jim Steranko in this category before.

But this blog post does an excellent job of explaining the exceptional visuals Steranko brought when he entered the comics field, what a jolt they were relative to the current fare of the time, and how Steranko's influence has endured, for 50 years now.

Just a few artists I can think of that manifest a clear Steranko influence include Paul Gulacy, the late Gene Day (and brothers Dan Day and David Day), and Scott McDaniel. Even Neal Adams manifests a Steranko influence in some of his more psychedelic moments.

STRANGE ADVENTURES 216, Feb 1969, page 13:
"Hey, a Jim Steranko effect"
https://readcomiconline.to/Comic/Strange-Adventures-1950/Issue-216?id=47153#17

Some playful rivalry and tribute between Adams and Steranko.