Her bodice is a men's doublet style, but clearly tailored for a lady. I've known McCall's and Butterick to have sectional patterns for historical costumes that include doublets with a peplum very like that, and the jointed, laced sleeves. It's historically-based while being modified to look more modern and fancy. Like...the collar.
As for fabric, much of the "tapestries" or "brocades" they use are just decorator fabrics. They probably had a field day in the upholstery/drapery section of the fabric districts. So, finding THAT exact fabric is probably going to be next to impossible unless it happens to miraculously be this year's popular decorator design. Reproducing it with a plain base fabric, some embroidery and/or paint and/or trim and/or beads is going to be a pain in the ass, but it can be done if you have closer, detail shots of exactly what the pattern looks like.
Founder and President, Madison Area Costuming Society, a chapter of the International Costumer's Guild
Strange Land Costuming - www.strangelandcostumes.com