None of that proved Madoka was omnipotent. My point was that she only had the ability to erase witches from all timelines. The first scan you posted shows her making her wish and she says I want to erase all witches in every universe. The timelines and universe were changed simply because she removed witches that were suppose to exists in them. You're confusing the butterfly effect with omnipotence.
"Right now, I can see everything. The past, the future, universes that once existed, and those that might come into existance."
Cool. Silver Surfer along with other fodder cosmic beings can do that too. Are they omnipotent as well?
"You... really plan on becoming a God, don't you?" "We'd be talking about something completly different than interfering with time... It would violate the very laws of casualty itself!"
Being a god doesn't make you omnipotent, especially by statement. There's people in the Marvel verse who can warp the multiverse to fit in a suitcase and they aren't anywhere near omnipotence by Marvel's standards and I'm talking about Legion.
"The Universe is being reorganized in order to confirm with the new laws she brought forth."
Yes, laws involving the existence of witches because that was her wish.
"From now on, I'll be everywhere at every time."
Hmm I don't know Madoka, where was that omnipresence during Rebellion when you're friends needed you? Either she isn't omnipresent or she's just useless. I'm actually wondering if this manga is even canon to the show and movies.
Dr Doom used the Cosmic Control rod and Cosmic cube to syphon the cosmic energy from Galactus. He needed a lot of prep and help from Annihilus to accomplish this. Any normal human being with a cosmic cube could easily one shot Madoka.
Doom with prep is one of the most dangerous fictional beings to ever be conceived. We're talking about a man who stole the power from a being who casually erases universes just by thinking. Prep Recton Beyonder was even more powerful than Living Tribunal and Doom with prep stomped him so why downplay Galactus for losing to a Doom with prep?
As for Devil Homura. Galactus flicks his wrist.
Did I ever say once that Madoka is omnipotent, or even nigh-omnipotent? She wasn't just destroyinging rules related to witches, but rules that get in the way of letting her end the witches. She made it so witches would never exist again. The Incubator stated that nothing like this had ever been done before. I still see you're ignoring that Madoka destroyed witches in more than one universe (a Cube is one universe, so well below Madoka), and she created a Seed capable of creating and destroying entire universes, which she destroyed effortlessly.
I'm not downplaying Galactus, you before said Galactus was vastly more powerful than Doom with the Cube, but in that very same fight, Doom beat Galactus.