Before & After: Captain America: Living Legend #1

Title: Captain America: Living Legend #1 Solicitation	Title: Captain America: Living Legend #1
Publisher: Marvel Comics	Publisher: Marvel Comics
Cover date: 2013	Cover date: 2013
Artist: Adi Granov	Artist: Adi Granov

As seen on Ui ar de Japis.

Tales of Suspense #39 homages

Title: Tales of Suspense #39	Title: Iron Man #126
Publisher: Marvel Comics	Publisher: Marvel Comics
Cover date: 1963	Cover date: 1979
Artist: Jack Kirby	Artist: John Romita Jr.

Title: The Amazing Spider-Man #259	Title: Iron Man #191
Publisher: Marvel Comics	Publisher: Marvel Comics
Cover date: 1984	Cover date: 1985
Artist: Ron Frenz	Artist: Luke McDonnell

Title: Iron Man Omnibus v1	Title: Iron Man: The End #1
Publisher: Marvel Comics	Publisher: Marvel Comics
Cover date: 2008	Cover date: 2009
Artist: Adi Granov	Artist: Bob Layton

Related: Nova v4 #1 / Nova v4 #5

Title: Nova v4 #1	Title: Nova v4 #5
Publisher: Marvel Comics	Publisher: Marvel Comics
Cover date: 2007	Cover date: 2007
Artist: Adi Granov	Artist: Adi Granov

Captain Marvel v1 #29 Homages

Title: Captain Marvel v1 #29	Title: Charlton Bullseye #2 (interior page)
Publisher: Marvel Comics	Publisher: Charlton Comics
Cover date: 1973	Cover date: 1975
Artist: Jim Starlin	Artist: Jim Starlin

Title: The Life of Captain Marvel #1	Title: Civil War: The Return
Publisher: Marvel Comics	Publisher: Marvel Comics
Cover date: 1985	Cover date: 2007
Artist: Jim Starlin	Artist: Ed McGuinness

Title: Captain Marvel v6 #1
Publisher: Marvel Comics
Cover date: 2012
Artist: Adi Granov

The Captain Atom page was spotted at Rip Jagger's Dojo. Also, you can see the cover before the John Romita redrawing here.