Your quilt is just beautiful now on to batting, If you are going to hand quilt I would not suggest warm and natural or warm and white. It is hard to needle and you will end up with very sore fingers. LOL Ask me how I know!
I love fairfield traditional batting. It is a poly batting for handquilting and very low loft.
If you are going to machine quilt warm and natural or warm and white are great.
Debbie KS