My bank alt has changed her duds to a more springtime look.
Featured above: Purple Dinner Suit, Rustic Workman's Shirt, Stratholme Lily, Lookout's Shoes.
Octavien bought Suit Boxes until he found one of each color, and then mailed them all to Frost to hold for safe-keeping. Though I've seen some screenshots where the belt was displayed, sadly, I haven't found a belt that will actually display over the suit. :/