You could refer to her model design, somehow a leather high heel-ish shoe, stockings, inner wear? ( I don't know what to call that) It has the same color as her stocking. a red and white pleated skirt with a leather belt, a red sleeveless shirt, a ribbon with a green brooch tied to it, another 2 ribbons for those lovely twintails. and black, red, and gold captain’s coat that she wears around her arms, well that's just me simplifying stuff https://virtualyoutuber.fandom.com/wiki/Houshou_Marine/Gallery?file=Houshou_Marine_-_Concept_Illustration_01.jpg