They are similar in that they are both out to downfacing and in the red-orange range of color. B&D describes Circus Clown as having a gold flush and light spotting in the center. Circus Crowd is described as having no spotting (from an old PNWLS sale description).
From PNWLS I ordered one each of Opulent and Carte Blanche and a bag of Ortegas to use for hybridizing. An understandable short list from PNWLS!
Beer, lilies and a hot summer day go well together...