Thanks - I looked at the original fabric again and it has some crinkling in the fabric itself so I'm not too far off. There are a couple of spots where I've clearly damaged the weave so I'll just have to cut around those. I think the rest of the costume should come together (Mai Shinurai) and the fabric issues that I see should be unnoticeable as you mentioned.
Lesson learned for the future - I'll need to get a wider, flatter tub for dyeing. I really wanted to do silk for this cosplay instead of the typical satin. The white isn't pure white but it looks white enough next to the red.