I love the pansy prints - but the differing colors of purple and blue can be very different and clash. If you could send a piece of the color you would like, we could match as best as possible, otherwise I would say use the yellow since that ties them all together and you could use purple for sashing.
I try to stock up on WOW and BOB whenever there is a sale. I also try to keep marbled fabric in my stash for these swaps.
Printing out patterns I want to try!!