Pretty fabrics. I suspect that you are a bit like me - too much of a good thing can overwhelm me. Then I have no clue what to do.
I suggest making a scrappy checkerboard quilt with the 4" blocks and white fabric. To make it go faster, Cut 4" x WOF white strips, then pin 4" squares to the white strip, sew 4" blocks to the white fabric, then cut them apart.
Happy piecing!