Congratulations and I sincerely hope your honeymoon is everything you hope it will be. The issue of what to take varies so much between individuals and here on CruiserLog, a site dedicated to those hardy souls who set off on their own sailboats, we would be more likely to recommend entirely different supplies than for those people who are heading of on a cruise liner.
However, having reviewed the list of recommended supplies on the brochure from the cruise line you are sailing with, I agree with their recommendations. The only addition I would make depends upon how much natural adventure you are expecting to experience.
Cold weather clothing is a must, as the brochure suggests, however in pure sailing terms, cold weather clothing for marine wear is a little different from the style of clothing you would wear ashore. Layers are always the key and you need to pay particular attention to the manner of closing of pockets, vents, sleeve and leg fastening, the height of the neck etc. Also, I would recommend an outer layer which is waterproof. There is a West Marine store in Oakville, Ontario and it may be worth going in for a chat with one of their experts. Have a look on their website (Foul Weather Gear | West Marine
) to become familiar.
Buy the best wrap around sunglasses you can find and you may suggest to your new life partner that, for both comfort and fun, you invest in a good double sleeping bag to use onboard.
Again, best of luck for your life together and I hope you have a wonderful honeymoon.