Rainbow Clown Birthday Cake

A whimsical rainbow clown-themed birthday cake for a four-year-old boy’s birthday party, playful and cheerful rather than scary. The cake is a two-tier round cake with bold rainbow colors, colorful buttercream piping, polka dots, stars, balloons, and circus-inspired details. Add a cute vintage-style clown topper with a friendly smile, rainbow party hat, oversized bow tie, and curly hair. Include rainbow arches, colorful sprinkles, small fondant balloons, and a number “4” cake topper. The overall style should feel bright, magical, child-friendly, nostalgic, and fun, with a high-end custom bakery look. White background, professional cake photography, soft natural lighting, highly detailed, realistic cake design.