Fantastic Four #144 (Pt 15) Classic Thing Stance

Fantastic Four 57

Fantastic Four 144 (1974) Buckler

Ben is from Kirby's Fantastic Four #57 cover. 

Fantastic Four #57 (1967) Jack Kirby

More on this Fantastic Four #144 panel here.  

Fantastic Four #144 (Pt 14) Ben Grimm is Angry

1966: Fantastic Four #55  Jack Kirby

1974: Fantastic Four #144 Rich Buckler

Fantastic Four #143 (Pt 9) Leaving On a Jet Cycle

1967: Fantastic Four #64   Jack Kirby

1974: Fantastic Four #143  Rich Buckler

Fantastic Four #143 (Pt 8) Dr. Doom and the Sentry Sinister!

1967: Fantastic Four #64  Jack Kirby

1974: Fantastic Four #143  Buckler

Fantastic Four #142 (Pt 9) Ben and Alicia

1963: Fantastic Four 15 - Kirby

1974: Fantastic Four 142 - Buckler

Pretty standard, routine shots; possibly "suggested by."

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 #138 (Pt 2) Johnny Storm, Sweet and Innocent

Okay, it's a stock facial expression, but in #138 Buscema's callow, slack-jawed Johnny (a flashback to FF #3) always strongly reminded me of...

1973: Fantastic Four 138 Buscema-Sinnott

...Johnny from Fantastic Four #39. 

1965: Fantastic Four 39 Kirby-Giacoia

Fantastic Four #130 (Pt 5) Sultry Sue Channels Veronica Lake

1970: Fantastic Four 94 - Kirby

1972: Fantastic Four 130 - Buscema

Have You Seen Ant-Man?

Squint real hard ;) Avengers #93 (1971) Neal Adams

Avengers #161 (1977) Perez

Fantastic Four #118 (Pt 5) Crystal Close-Up

1967: Fantastic Four 61  Kirby/Sinnott

1972: Fantastic Four 118
Buscema/Mooney

Perhaps suggested by? 

Fantastic Four #118 (Pt 4) Solicitous Sue

1966: Fantastic Four 47 Kirby

1972: Fantastic Four 118 Buscema

Connections: both Fantastic Four #47 and #118 feature Johnny in hot pursuit of--who else?--Crystal. 

Fantastic Four #110 (Pt 4) Sad Sue and Brawny Ben

1971: Fantastic Four 110  John Buscema

1963: Fantastic Four 11  Jack Kirby

Fantastic Four #125 (Pt 2) Stormy Waters

1972: Fantastic Four #126 - John Buscema
Embellisher: Joe Sinnott 

1962: Fantastic Four #5 - Jack Kirby
And yep, inked by Sinnott