Adjust the alignment points to correct the stitching angles of different images. When you need to composite an image into a collage, you should adjust the alignment points to make the perfect panorama. To get rid of the ghost part, you can adjust the blend for better results.
WidsMob Panorama is a simple photo stitching program that can make panoramas simpler. When your camera doesn't have everything, you can use panoramic image stitching software for Windows and macOS to form a composite image.