Shadow boxes are so much fun, especially paired with watercolor. This one is in cool blues and violets. I used a granulating and separating mixture of Quin Rose (Daniel Smith) and Cobalt Turquoise Light (Winsor & Newton) that creates a beautiful soft violet with some pink tones and blue tones separating out, perfect for a cool nighttime glow.
Of the images below, the first one shows off the color variations well and the second one shows off the sparkling gold highlights.