It is, in general, the idea of "overindulgence and lavish spending" that is most associated with the term "Edwardian", although many other things are associated with it as well.
Edwardian is the term given to the period of British history opening the 20th century when King Edward VII was settled; though it extends from the 1890s until World War I in 1914.
Among its features, the dawn of liberalism, the belief in modern rationality and progress; but it held back on other areas such as arts per say, with the beginning of <em>"Art Deco"</em> in architecture and the end of the <em>"Arts & Crafts"</em> ideals.
Then Artists were influenced by technological advances such as electricity and the automobile. Also the era leaned toward dresses made of lightweight fabrics for a more dynamic lifestyle.
Thereby, the most suitable answer is: <em>"Restrained elegance in art, fashion, and architecture"</em>
I'm not too sure about this. However, I would say that it is Ok to say attached is the assignment. It seems wrong, but to make it seem more natural, maybe try adding extra words like requested.
