I really like the fabric colors you chose. And the way the corners of the blocks make a secondary pattern is really cool.
Was this a commercial pattern, or one someone in the guild came up with? It is one nice quilt!
This is a commercial pattern by Debbie Caffrey. www.debbiescreativemoments.com is the webpage. The lady who led the class said you had to buy a group of the pattern--it is designed specifically as a mystery quilt. The name of the pattern is "O Solo Mio".