Just a thought for you Joanelizbay, why not try a little color for the sashing like a white/yellow that will bring out the flowers in your feature fabric. NOT a lot of yellow, but a soft white/yellow gray tone. Something like a grunge I think they call it. This way it would lessen the intensity of the orange and give it a bit more balance. Since your center is a medallion, I would then do 2" sashing around it, split off the four corners with the 2", sew the two blocks together that are the centers around your medallion to keep the square look. Then follow up with the zinger the same color as sashing around the whole quilt in 2" finished, then you can do a border of the orange. It would help feature each block with the white background and give the quilt some balance. Just a thought.