/cgl/ - Cosplay & EGL

I'm wondering how people might go about doing oddly shaped details like the ones on this jacket. I thought about applique, but I feel like the satin stitching around the edges of the designs might look bulky and odd. Any suggestions on making it without that visible but also without raw edges of fabric? This is my first time trying this kind of detailing.
>>8741034
Personally, I like the Arda dark copper red best. It's not eyedropper perfect, but I think it gives the best approximation of the color without seeming pinkish or too orange. I think against the blue of the outfits you've pictured (I don't know the series), it'll seem a little closer to the right shade as well.