That first panel makes sense knowing that. It was because of Big Barda that Jack Kirby once gave Mike a stern lecturing. Mike once tried to make her look more feminine by altering her face a bit (surprising since that isn't his style) and JK said, "Never. Change. The faces." And he never again did. Memories of Colletta must have flashed through Kirby's mind.
I think The reason he tried to make the alterations is because he's very good at drawing the female body, in fact I think that's what he's best at.
"I told him, Larry [Fitzgerald], if you break one of my records, I’ve still got 36 more." -Jerry Rice