It was alright, not the best, not the worse- but, this is typically always my reaction the first time I watch a film. My attention is plainly focused on what is there and what isn't there than just relaxing and watching the actual film itself- that always happens to me for some reason... So I can say for sure tomorrow- but, I am taking a guess at 7.5/8 range.
We don't see Galactus. I don't even think Galactus himself was in the cloud- RATHER, I think it was Galactus' ship. Call me crazy but it reminded me dead on of the 90s cartoon. The storm, the clouds, the ship- everything... only Galactus never goes down.
Reason I say ship is at the very end I saw a certain Death Star looking thing which is what the ship reminded me of in the 90s cartoon. May have just been the result of watching that first then going to see this...
Also, I might be wrong- but it sounded like Galactus sadistically- laughed? Anyone else hear that or was I just hearing things?
Anyways it was an alright flick, better than the first time seeing SM3 and FF1 and SM3 got into my top five the second-go-around... so, we'll see. I'll be able to see clearer tomorrow now that I know what is and what is not in the final film. That has effected my viewing in EVERYTHING- and yes, even effected the first time I saw SM2 as well... Right now 7.5-8.
Oh and Doom fans- that pic you were asking about with that green and all those TV screens... THAT IS IN THE FILM!
There you go, at least I got a chance to answer one of your questions.
Nearing the end- yeah it does start to get very serious and dark. The air fight was AMAZING. The fight with Doom was awesome- only ended too quickly.
Oh and Reed, if you're reading this- please teach me how to dance dude!

Seriously, Ioan, imo, is a fantastic dancer with the effects.
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And also, as I said- every film, for which I read the novelization of prior to, the first time through is more of a "is that in? is that in?" waiting game than being able to relax and just enjoy the film. So, having now known that I can give a final estimate tomorrow. Leaning more towards the 8 though.