Art Quilt in Progress

I made my selections, found a cotton batting base, cut and laid out colored shapes.  Raw edges are temporarily held down by glue stick, then hand stitched with embroidery floss, using either ladder stitch or cross stitch.  I'm thinking that this might be just the background for a TURTLE!

The basic stitching has secured all of the large elements.  Now, what to do with that big purple space?  Maybe this turtle is in the garden.  I've fussy-cut some tropical looking flowers and need to figure out how many and where.