I agree with
@OneBleachHurricane's evaluation on that portion of the OP.
As for the new abilities/resistances you added. I would be fine with Melascuala having Teleportation Negation, but I don't see how Portal Creation Negation would fit into this since from my recollection of the ability it doesn't create a portal for the teleportation to occur, it more so just changes the positioning of anyone whose affected by it to her likened distance. It would work more so how Shambles does in One Piece if I were to use an example.
It should be a possibly rating rather than a likely rating as we have zero clue on if the effects of Estarossa's magic is passive or not, and the resistance should be to Biological Manipulation, not Transmutation since the bird was still a "bird", and it was still made out of the same matter as the bird previously. It just had its biology greatly distorted through contact with Estarossa's magic.
I'm fine with limited resistance to Power Absorption for Commandment holders.
I'm fine with Curse Manipulation and Fission, but I don't agree with what was happening with the Original Demon being Deconstruction. "
Breaking down" because of his life force being shaved away wouldn't mean he was breaking down into smaller particles like cells or molecules. Since we aren't even told he was breaking down to those levels, not even an implication. I wouldn't agree with us just assuming he was getting deconstructed by this ability rather than this ability just slowly killing him, causing his body to break down to an unknown degree.
I don't agree with Mael having Fission as explained multiple times in multiple different threads.
What chapter did this feat happen in?