Backdrop or background. Abstract background. Abstract photograph. Abstract rain photography. Curtain. Curtains. Silver. Silvery. Blur background. Blurred background. Blurry background. Shimmer. Shimmers. Shimmery. Shimmering. Shiny. Rain. Rains. Raining. Raindrops. Shine. Shines. Twinkles. Twinkling. Sparkles. Sparkling. Metallic.