You will use the applique stitch (sometimes called the fell stitch) to secure the motif to the background fabric.
Or we can explain that this stitch is used to sew a raw of folded edge flat against the layer of fabric beneath it and to sew seams permanently from the right side.
You going to make the stitches look "invisible" with this technique. Let's show you how to sew it. I will demonstrate with the embroidery thread. This thread is thick so the stitches will show up better for you.
1. Thread your needle and knot the thread before start to stitch. Always make sure your thread is one side longer than the other side. The knot will be at the longer side.
2. Begin the stitch by poking your threaded needle up through the fold of the fabric being attached.
3. Pull the thread until it stopped by a knot.
4. The knot will be at the wrong side of fabric.
5. Put the needle through the background fabric at the point which is perpendicular to the stitch on the folded fabric.
6. Take a stitch through the background fabric and bring the needle up through the background fabric and the fold of the fabric being attached.
7. You get your first "invisible" stitch.
8. Put the needle back into the background fabric at the point which is perpendicular to the stitch on the folded fabric, and repeat until edges are stitched together.
9. The stitches look "invisible", right? :)
10. From the back it looks like this, with the stitches forming long diagonals. Please note that these stitches are much larger than I'd usually make, but are large for sake of illustration.
