Luke Cage and Iron Fist by David Williams

Power Man & Iron Fist Homage to their 1980s House Ad

Power Man and Iron Fist by Sajad Shah

1980 - Power Man by Kerry Gammill

Power Man and Iron Fist by Chris Samnee

Power Man and Iron Fist by Kerry Gammill

Power Man and Iron Fist #50 recreation by John Byrne

Power Man and Iron Fist #50 cover reimagined by Byrne - 2013.

1981 - Bob Larkin's Power Man and Iron Fist

Bob Larkin's painted cover to Power Man and Iron Fist #75.

and here's the published version:

1983 - Jackson "Butch" Guice Portfolio

From  Marvel Fanfare #9.

1984 - Marvel Super Heroes RPG - Lone Wolves

Cover by Mike Zeck!

1984 - Byrne's Power Man and Iron Fist covers

1982 - Anatomy of a cover - Dazzler #24

By Frank Springer

http://www.comicartfans.com/GalleryPiece.asp?Piece=944383&GSub=98739

1977 - John Byrne's caricature of Power Man and Iron Fist

http://romitaman.com/GalleryPiece.asp?Piece=8644&ArtistId=943

 "John Byrne - from an idea by Roger Stern with apologies to Don Martin"

Used for the cover of Comic Reader #143:

Power Man & Iron Fist sketch by Gammill and Layton

Grabbed from http://www.boblayton.com/Art%20Gallery/artgallery_page7.htm

Pencilled by Kerry Gammill and inked by Bob Layton.

1981 - Power Man and Iron Fist by Kerry Gammill

http://www.comicartfans.com/GalleryPiece.asp?Piece=320891&GSub=50018

Assuming that "Jo" is Jo Duffy, the writer of Power Man and Iron Fist, and "The Guys" are Kerry Gammill and possibly Ricardo Villamonte?

1984 - Power Man & Iron Fist house ads by Bill Sienkiewicz