They look great
some already starting to get good stems. may want to borrow a orchid spike to hold them up. could be taking a cutting off one of them by next year.
taking a cutting may seem a bad idea, but it stimulates growth from the base, and new growth appears from the cutting spot too, so you get a nice bushy look.
From the leaves they are getting good light, very healthy plants
I love nepenthes, you can watch them grow, as each new leave uncoils. Im waiting for a nice spread of new pitchers on a few of mine, as they all start to ripen.