Great quilt. For those of us who don't have an accuquilt this could be made by making strip sets and cutting the strip into equilateral triangles. Then you could assemble the quilt in strips also without Y seams. You would end up with a bonus quilt where the light and dark areas are reversed doing it this way or could make the quilt half light and half dark hexi pinwheels.
Your quilt was a great use of Christmas fabrics.