Here are a couple recent pictures of my N. rafflesiana. I have had it for a little over four years now, and it is outgrowing its makeshift enclosure. The picture showing the entire plant is a little dark - all the current pitchers are nicely colored like the one in the second picture. It is ridiculously hot and humid inside this enclosure, but the environment inside is remains stable, so I have had no problems yet.
Pitcher close-up:
Pitcher close-up: