In the picture, the second one looks like it is buckled in the center hole. Did you fold the background square in quarters, then divide the plate in quarters and flatten matching the quarter marks? Sometimes you have to gently stretch or smooth the plate outward. Measure the edge of block to plate points at quarter mark to see if it is centered, and that all blocks measure about the same at each marked point to edge. All quarter points should measure ... from the petal point to the edge of block, n/s/e/w, with no overlap of petals in center hole. (Hope my explanation is clear.) From the picture, it looks like the right side is shorter than the left side. Can't tell top r bottom as it is cut off of picture.