Beautiful!!
Here's a video of how you get the fussy cut square in the center:
http://www.youtube.com/watch?v=DvXUvKIzYZY
and the 10-minute block:
http://www.youtube.com/watch?v=ZbTHlGGKMPM
For a 10-minute block/faux cathedral window, you start with five squares the same size...any size will do. The bigger they are to start with, the more space will show between the blocks, as in this quilt, which makes them looklike they are floating.