Looks like triple layers on her torso?
Red/black vest sat on top of what I think is a victorian style short-sleeve blouse, and some sort of red and black turtleneck or jacket?
No idea on shorts.
Found a similar-ish blouse on Amazon. Probably start from there and hunt for other styles.
https://www.amazon.com/Victorian-Blouse-Womens-Gothic-Vintage/dp/B01N1V4V60