I also like the shoulder revealing look of Empress Elizabeth of Austria's style.
Here is the final plan. It's a little rought on the details, but it involves beadery and lace on the bodice and I thought about sitting cabochon settings on the skirt to get those big jewels. I'm also thinking of getting velvet for the details, so I get a nice textured look in the fishtail in the same way as in the blue on the first image. I have already gotten bright blue linen for the petticoat and the bustle and lovely purple for the dress. I first thought I thought about making the whole dress in velvet, but that proved to be a little too pricy. Silk was also too pricy. But I found a lovely cotton polyester that has a sating weave that makes it shine. There will be velvet in there, but in smaller quantities.