I'm from the city which builds these.
We built the previous largest record ships as well. I drove people to an event when Oasis of the Seas launched, iirc.
This somehow seems much taller from this perspective. Bet it's the lense a bit, but also, it's the fact that the ships are so big that driving next to them gives you no sense of their scale. Or height, at least.
Although I know that in comparison to the ferries we actually use, these are humongous.
And even the ferries feel absolutely huge when you're standing on the top deck and looking down at the sea.
I don't have like much thalassophobia or the fear of heights, but leaning over a railing on a cruise ship in the middle of the night to gaze at the abyss really does chill a person a little. I just wonder how that would feel at the top of one of those highers decks. Especially in a storm.