/cgl/ - Cosplay & EGL

I'm planning a pre-timeskip Erina and I'd like to hear /cgl/'s opinion on how to draft certain parts of her outfit.

Sleeves aside (which I have figured out), the white dress doesn't seem to be difficult at all, but I really don't know what's the best way to go about the blue dress: should I make the front panel+2 back panels with lighter blue fabric and then sew on large stripes for the darker part? Or should I use fabric paint? Not gonna lie, I'm using this as a costume to get back into cosplay and my main intent is to enjoy the con and take pictures of other cosplayers, so while I want to look good I also don't mind taking shortcuts.

If the cure anon doesn't mind, an Erina dump would help too.