Popular Thing Pose by Kirby, Kane, Buscema, Buckler and Perez

Classic Benjamin J. Grimm: standard shots of Ben as punching bag. 

Feb. 1968: Fantastic Four #71  Jack Kirby

Jan. 1973: Marvel Team-Up #6  Gil Kane

Dec. 1973: Fantastic Four #141 John Buscema

March 1974: Fantastic Four #144 Rich Buckler

Dec. 1976: Fantastic Four #177 George Perez
Perez changes the legs and adopts Buscema's open mouth expression 

 If Buscema's and Buckler's panels look familiar, it's because we've seen them before here and here.  How do Kane's and Perez's stack up?

Fantastic Four #141 (Pt 3) Sue Reaches Out

1973: Fantastic Four #141 - John Buscema 

1965: Fantastic Four #39 - Jack Kirby

Psst--look at Franklin vis-à-vis Ben. ;)

Verdict: Eh, pretty standard. typical positions. 

Fantastic Four #141 (Pt 2) Classic Ben

1973: Fantastic Four #141 John Buscema

1968: Fantastic Four #71  Jack Kirby

Check out Rich Buckler's version of the FF #71 panel here ...plus his version of Buscema's #141 Thing here. 

Fantastic Four #141 (Pt 1) Medusa and Sue Reach Out

1973: Fantastic Four #141 - John Buscema

1969: Fantastic Four #90 - Jack Kirby

Fantastic Four #142 (Pt 2) Reed's Ray Gun

 FF #142 was Rich Buckler's first issue as the FF's regular penciler and like John Romita Sr. and John Buscema before him, Buckler had to maintain a visual consistency with the Kirby FF. In addition Buckler also had to provide continuity with popular predecessor Buscema's work. Joe Sinnott finished many of Buscema's and Buckler's issues, adding to the seamless B-to-B transition. 
  
Here's an example from FF #142 of Buckler's take on the Buscema musculature combined with a Kirby-inspired panel. 

Fantastic Four #142 (1974) Buckler

Fantastic Four #40 (1965) Kirby

And here's the Buscema version from the preceding issue, FF #141 (Buckler's #142 panel is a flashback of this scene). 

Fantastic Four #141 (1974) John Buscema

Fantastic Four #153 (Pt 22) Panel 8, Penultimate Page - Medusa Spaces Out

#153's Reed and Ben may be partly based on Kirby's opening splash of FF #100 (1970), but Medusa here is pretty much a twin of John Buscema's Medusa from the opening splash of Fantastic Four #141. Johnny's legs and feet make stellar appearances in both panels too.  

Cover-dated December 1974 - Fantastic Four #153 - Buckler

A mere year earlier! Cover-dated December 1973 - Fantastic Four #141 - by Big John Buscema

Fantastic Four #153 (1974) Page 30