When adding hand embroidery to fused art quilts, you only need to stitch through the batting and top layer of the quilt. There are two advantages of embroidering the quilt first before adding the backing fabric. One is that without the backing fabric, you have one less layer of fabric to stitch through.
And the second advantage is that it’s easy to hide thread knots. Here you’ll see a few knots in the batting where I began a new thread color. And you’ll also see how to end a thread. Just slip the needle under previous stitches on the back and snip. It’s a good idea to snip the threads closely to the back of the quilt so they don’t catch other threads when your working new stitches.