This Kirby/Everett credited cover always looked a little odd to me for some reason. The Captain America figure almost looks like it’s pasted on from some other source, and the inks seem oddly heavy in places, maybe not over Kirby at all. Still not bad looking.
I do wonder how this cover came about, over a year after Kirby had last drawn the book. [See the comments for some additional speculation on the origin and composition]