"Can you help point out some things to keep in mind as I select the neutrals I need to use?"
There is a book out called Modern Neutrals, and another called Spotlight on Neutrals. Both have beautiful quilts. Pick out fabrics from the palates in their quilts, and you can't go wrong.
Just remember that you are making it for THEM. Your taste may not be their taste, that's why we are all different. You might really like the quilts once you get into making them. Or at least have a better appreciation for bland! lol Good luck!