A model is a three-dimensional of a person/thing or of a proposed structure.
A mock up is a model or replica of a machine or structure, used for instructional or experimental purposes.
A prototype is a first or preliminary version of a device or vehicle from which other forms are developed.
You can find it in art history books, Wikipedia
Answer:
Designers will literally set their designs down on paper using fashion illustration. They are free to express themselves and their interests. Designers may use animation to help them come up with fresh ideas by putting their creative and authentic ideas into practice. Fresh fashion trends are born as a result of this. A client can see the fore of the soon-to-be-made dress through sketches, illustrations, or even sculptures, and even propose corrections.
Hope this helps!
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I would say a flesh color; that’s what’s safest. If you feel daring, then a red or black.