Oh my what yummy fabric!!! and your room is beautiful. IMHO I think that the yellows and baby blues are too bright and would stick with the two end fabrics and/or the floral that is 3rd in from the right.
The first thing I thought of was a geometric design that would still have a feminine feel due to the fabric.....something like this....using just two fabrics. Of course you could do more scrapy.
But you know....an applique quilt using all the fabrics might work too LOL.