Celeste is lovely in a girl next door kind of way. She's tall, blonde, and has the brightest blue eyes—blue like the sky on a clear summer morning. No matter how much sun she gets, her skin is always fair, perfectly smooth, and has a healthy glow to it. When she stands in the sun, it seems her skin glows almost literally, a faint radiance as though it cannot hide her inner light. Celeste dresses in smart, comfortable clothes that do little to hide her shapely figure.

While transformed, a halo of sunny golden light limns her entire form. Her eyes become luminous windows into the heart of Springtime, her hair rises to float on a breeze, and she becomes clad in garments woven of the very clouds themselves. Her wings are purest white and gold. When she descends from the skies to help those in need, her wings seem to stretch from horizon to horizon. Seraph's energy powers are golden-white, brimming with hundreds of tiny star-like crackling sparkles.