Sage, grayed or even apple-type greens work wonderfully with a blue toile. Adding a green might be a nice way to round out the butter/blue color scheme.

Almost all my ceilings are painted Navajo White. I know that's not one of the new choices but just mentioning I've seen the color IRL. I have samples of Muslin and Natural Wicker. I like both colors but if my memory is working right, the Muslin has red in it which I remember seeing a slight pink tone when looking at painted poster board sample. Out of all the samples I tried, this one really looked pink to my eye. Natural Wicker was nice but was too light. I ended up actually not even using that room right now and when the time comes, I'm going to use Manchester Tan - which I know is darker than what you're talking about here. The room also gets lots of sun. I would definitely check out the paint samples in the room. A nice neutral you might consider checking out is SW Aria Ivory (it's a retired color). Miss Mustard Seed used this in her house and I really liked the sample I bought. If you look around on her blog more, you'll see a lot more photos of this color than what's shown in the link. Here is a link that might be useful: MissMustardSeed blog - aria ivory

I hired a color specialist and she recommended BM Ivory White. Not too white, not too yellow or pink, but it is an off white, creamy - not stark white. She also recommended painting all of our trim in our house the same BM ivory white. Granted, she saw pictures of our house. She has an entire blog dedicated to white cabinets and the right white that you might find helpful. http://colourmehappyblog.blogspot.com/2008/11/white-kitchen-cabinets.html We're really happy with the ivory white as it goes with the rest of our house. Good luck!

Both are excellent choices. You cannot go wrong with either one.