Taylor was described as tall and lanky in her mid-teens. Personally, in my experience, such girls tend to become either painfully thin, or more often, if they don't eschew physical activity, get the figure of track runners of pageant models.
I think you are expecting Taylor in costume to match your mental image of her physique when she is not in her costume. She can be skinny without looking like she it when she is wearing her costume.
Regardless, amazing work. I love how you emphasized the different thematic elements Weaver is trying to draw on.
I used this costume description as my basis:
From CELL 22.6
Defiant handed me my new mask, and I pulled it on. Electric blue lenses, the opposite of the yellow I’d worn before. They helped with the glare, though they weren’t so good against it as my old lenses. Light gray fabric where I’d had black. Armor panels in the same dark gray as before, albeit with cleaner lines, less bulk, and less in the way of edges. I had no points at the tips of my gloves, and both the mantle around my shoulders and the cloth that hung around my belt were marked with an electric blue border, with my gang emblem in miniature at each corner, flipped upside down so they faced skyward, altered to match my new color scheme.