I posted a gallery of images of covers that resembled "Crisis on Infinite Earths" #7 on the "John Byrne Message Board." Many posters added contributions to the group of cover images. Looks like there's quite a bit of what I am calling "fallen friend" or "Pieta" covers.

You can see the images here:

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"Pieta" covers, or "Fallen Friend" covers? (Graphic intensive)
September 20 2003 at 11:46 AM

(excerpt)

PIETA , sculpture art by Michelangelo, thanks to Matt Hawes	FORBIDDEN PLANET MOVIE POSTER thanks to Andrew Kneath	NAMOR, THE SUB-MARINER #13 thanks to Larry
AVENGERS #49 thanks to Larry	AMAZING SPIDER-MAN #90 art by Tom Morgan, thanks to Larry	LOIS LANE #102 thanks to Andrew Kneath
INCREDIBLE HULK #189 thanks to Matt Hawes	DEATH OF CAPTAIN MARVEL art by Jim Starlin, thanks to Matt Hawes	DETECTIVE COMICS #574 art by Jim Aparo, thanks to Matt Hawes
THE MONSTER OF FRANKENSTEIN #2 thanks to Larry	OUR ARMY AT WAR #193 art by Joe Kubert, thanks to Larry	OUR ARMY AT WAR #193 art by Joe Kubert, thanks to Larry
CAPTAIN ACTION #3 thanks to Larry	SILVER SURFER #11 thanks to Larry	TOMAHAWK #121 thanks to Larry
MARVEL PREMIERE #9 thanks to Larry	DAREDEVIL #164 thanks to Larry	INCREDIBLE HULK #408 thanks to Larry
OBNOXIA THE CLOWN VS THE X-MEN #1 thanks to Larry	CAPTAIN ATOM #8 (Oct 87) thanks to Aaron Poehler