How did you do the center? The yellow flower. Is it appliqued? I saw somthing similar recently, and the part that looks like your yellow was some how folded to make the petals. What is the name of this block, and does it use that "folded" techinque?
I do like your colors... I think they would be awesome. But is it a hard and/or frustrating block to make? I wanted to take the class for the block that I saw, but decided I wasnt ready for that challenge yet. Best of success to you in whatever you decide, and be sure to show us the results!