Fantastic Four #150 (Part 23) Mad Max's Mad Grins

1969: Fantastic Four #82 Kirby

1974: Fantastic Four #150 Buckler

Fantastic Four #117 (Pt 6) Mop Tops

Fantastic Four 117 (1971) Buscema

Fantastic Four 59 (1967) Kirby

Aww, not a swipe--I just love those Beatles 'dos ;) 

Joe Sinnott's inks provided the FF series with great visual consistency.

Mad Maximus by Our Pal Sal and Pepe Larraz

You know, I always get a kick out of Maximus so I couldn't resist posting these: a panel from the very recent Inhuman #7, plus Sal Buscema's Max from a Bronze Age gem, Avengers #127. Not a swipe, but a nice use of reference IMO.

Inhuman 7 (2014) Pepe Larraz

Avengers 127 (1974)
Sal Buscema 

Fantastic Four #150 (Pt 1) Group Shot

Fantastic Four #150 (1974) Rich Buckler

Fantastic Four #44 (1965) Jack Kirby

Also, Medusa in the #150 panel is reminiscent of Medusa in this panel from 1969's FF #82. We'll see this Medusa image used again in another issue. 

Fantastic Four #82 (1969) Kirby