Lovely quilt.
Last summer, I took a quilting class. We made a sampler quilt using a QAYG method but different from the one you used. We would quilt the top just to the batting and then attach the finished rows together before adding the border and backing. Once i added the backing, they had me quilt around each block and around the borders using SID. I have a couple of pictures. The top two pics are the top row and bottom row so you had to have extra batting to add the rest of the lattice. Its explained more in Eleanor Burns book Quilt in a Day.
