@aperson,
I dont know who designed the pattern or how, but this one is the most interesting to me - you can see the swirl and movement better when the picture is small - I'll link it here (if you go to the third page it's the second image on the top line) but I like the way the straight lines work together to make that swirling movement, and the colors.
So this is more of a traditionally pieced quilt - in that it is made up of pieces or strips of cloth pieced together.
It seems that for most fractal quilts - the person prints the image onto one large piece of material and then embroiders, usually french knots, following the curving lines and defining them and then hand quilts the fabric.