Again, Christ's kingdom is ALREADY declared in the 7th trumpet in Rev. 11:15:
"Then the seventh angel sounded: And there were loud voices in heaven, saying, “The kingdoms of this world have become the kingdoms of our Lord and of His Christ, and He shall reign forever and ever!”
Therefore it's impossible to have the two beasts, the 7 bowls, the Babylon whore and everything else after that. The only explanation is that trumpets and bowls are in the same period. Revelation is NOT narrated in chronological order. This 3.5 period mentioned FIVE times from chapter 11 to 13, and then the time period of 5 months mentioned 2 times, does that mean the great tribulation is gonna last 18 years plus 4 months - even though Jesus said it would be cut short for the sake of the elect?