What a fun plan!
Mr B and I stepped on our first Viking Ocean, coincidentally the Jupiter, on our 55th anniversary, and it was my 55th cruise. After one glitchy main dining room dinner the first night, the rest of the cruise settled down to exceed our expectations … b/c of the whining of the Viking cruisers, hence our diminished expectations.
Right now we have two Crystal booked, and one more Viking Ocean. Our two Crystal happen to be on Serenity, b/c they’re in North America.
Have fun with your planning!