[QUOTE=LyndaOH;5298258]I would use fusible applique to make the center. Cut a piece of fabric the size of the center (it should be the color you want for the top background) and then layer the other pieces on top of that. You can print the pieces from EQ and then trace them onto fusible or directly on the fabric. Just make sure to remember to reverse where appropriate.
I agree with Lynda - fusible is the way to go. You could just put the fusible around the edges of the pieces so as to limit the stiffness that could result. Then once they are in place machine applique around them. Your quilting could be outlines of blocks of stone in the area of the castle walls and that would hold the fabric in place. Then quilt some scalloped tiles in the turrets (yellow area) to mimic roof tiles and, and, and, well, gotta go now, I'm inspired!