Bored at work so I figured I'd try to show what I was saying. Please note I was using my brick (aka mouse) so it may look a little clunky. The red is trying to show how the cropping may look if changed a little.
Moving Ross into full frame on Panel 3 I think builds the composition and makes it a little less awkward.
Still not sure what I would do to replace the She-Hulk panel. Just try something a little less drastic maybe
Sorry that second blob around Ross's elbow, should be in behind, adding another soldier to the mix
Making Hulk larger or the soldiers smaller help increase the distance more to where they were in previous panels. (It should probably still be pushed farther than what I've indicated.)
Changing the position of Ross, to a different cropping makes the composition a little more dynamic and the crop is less awkward as at least half of his face is in frame and not cropped right at the lips.
I would consider removing the Barrel from between Ross and She Hulk. It just felt out of place and threw out the composition. Move Ross a little and bring She Hulk more into frame. Again having her cropped right at the neck is just a bad crop.
Also I think ending on the firing tank is a band use of that fram.
Increase Hulk getting hit reposition the close-ups and then have him busting frame a little at the end. I think the layout is a now a little more dynamic and has a little more UMPH to it.
I think your last page reads pretty well, only thing to take under consideration is the position of the soldiers. Here She-Hulk is getting ready to fight Hulk. However, all the soldiers are just kind of standing around ho-hum, like it's another day at the office. They should be a little on guard, on edge and ready to take flight. Remember they just hit Hulk with everything they had including a tank and it didn't phase him.
Granted they might be trained fighting men but I would say they would still be a little agitated.
I know it seems like nitpicking but it's small stuff like this that can really make a piece.
Again these are all just suggestions, take it or don't. I think this is the type of stuff Marvel will probably comment on and if I was an art director definitely what I would be looking at.