That layout if definitely wrong. You need to stack the 8.5" pieces horizontally in a column and the 4.5" pieces horizontally in a column right next to them. So they would be going horizontally as opposed to the long strips which are going vertical in the layout drawing. Does that make sense to you? I am not sure how clear that explanation is but I hope you can figure it out. That's the only way I can see to fit those pieces in that fat quarter.