All good suggestions above. Personally, I love to applique, so I would add bits of color whereever I wanted in a randomly and freecut style. OR you could stitch tou sheets together with your prairie point design and then decide where you want color and free cut pieces to "fit" within the thread lines by fusing them on. You could even stitch them down using decorative or straight stitching, colored/invisible/multi colored thread for a different look. It will be great!
However, I agree that warm and natural may be too warm for you. I am not real familiar with this so I suggest going to warm and natural's website and reading about their different battings. I know there are bamboo battings but I really don't know which would be best for your needs. Perhaps no batting?
Good luck!