Padma99, I made my applique flowers and hummingbirds using raw edge applique with steam a seam. I build the unit on a piece of parchment paper.
I do the decorative stitching with some tear away stabilizer. I pull off as much of that as I can when done decorative stitching. If there are small areas where the
fusible is still covered by stabilizer I will just pull a pieced of the stabilizer from a sheet of steam a seam. Lay it over the spot. Lay a piece of parchment down on top
of it and iron. Let it cool completely. Important. Pull it off the parchment paper. Place the applique on the already quilted background and fuse it down. Then I edge stitch
around it with 1.0 1.0 zig zag. If you were using it for a bed, rather than the wall. You can always go back in and stitch main parts. Like the on the flowers echo in the purple
area with purple thread, outlining the white spikes. You do want quilts to be even density of quilting I just do what ever it seems like it needs. The hummingbirds are a modified version of a Joann Hoffman pattern called Hummingbird Lane.
I have done one bed quilt that had a lot of applique , but my friend with a long arm quilted it. The people that got it have washed it without problems.
This is a picture of the quilt. HelenW