I personally don't find the seams distracting either.
What color is your batting? Here in the states, they make a bleached cotton batting that helps in this situation. You could try adding a layer of light weight cotton, or maybe white flannel between the top and the batting and see if that helps. The extra layer will add warmth. If you have any left over fabric, I would make up a small sample and experiment a bit to see what works. The sample could then be used as a doll quilt or table topper.