This is a huge stretch, but I thought I'd reach out to this community.
I shopped my local fabric store options and was only able to find one pink fabric that was not a lining/shiny/other inappropriate fabric option. It's a super thin knit and just not working well in terms of drape now that it's constructed. I know without using dye I won't get the exact color (and I refuse to use fabric dye, so please do not suggest it. I've done it before and it's a nightmare and never works for me. It always washes out without fail).
If anyone else out there has cosplayed Kairi from Kingdom Hearts (especially her outfit form 3) and maybe bought their fabric online and can share, it would be very helpful. I searched several online fabric stores that I knew of but turned up empty for anything pink. I've been looking at knits, medium-weight cottons, and blends that would produce a similar look to the two.
, in case it is needed.