I have two BIG albums for our last 7 day cruise but they are 12 x 12 and don't scan well and the digital pics DH took of a couple pages (which I then emailed because I can't figure out to post them anywhere!) didn't do them justice.
My suggestion is take the pictures you'd take anyway, take extras, keep your camera with you to take pictures that happen, and then snap those things that can add to the page.
For instance the signage is awesome as is the artwork. I took lots of those sorts of shots and worked them in to the pages. And don't forget to take your camera to dinner! Not just the diningrooms, your servers, and the special events but shoot the food too! Yes, I really mean it! We even would take photos of some of the bottles of wine so we could remember labels, etc. And I did my best to jot down what everyone had in my passporter right after dinner. Only took a moment or two but those made some really cool layouts.
Deb