decorator; ornamentalist
Refers to a person whose profession or skill is decorating or ornamenting spaces, objects, or surfaces. Often used in contexts like interior design, event decoration, or artistic ornamentation.
As a professional decorator, she beautifully decorated the wedding venue.
The job of a decorator is to add color to a space.
Compound of 装飾 (decoration) + 家 (suffix for a specialist or professional). The exact historical derivation is uncertain, but the word follows a common pattern for naming practitioners of an art or craft.