After that, I need to perform basting to sew put up the pattern which was arranged properly onto the background fabric (as shown in photo) before starting the applique process.
When applique the pattern, first you need to fold the fabric by tracing along the pattern as shown.
then pin it. After that, have patient, slowly perform the applique. One key point is, never cut the fabric if you find that you cannot sew up the shape as you wish eg. the sharp edge, the round edge. There are ways to do it.
HOW TO MAKE THE SHARP EDGE
As usual make a trace line onto fabric as shown,
fold the fabric, this create the edge as shown in circle area
carefully fold the edge into the fabric again, and pin it tightly as shown below.
Sew up (applique method) the edge as shown below
there you go, a sharp edge.