defocused abstract gradient background with grainy texture and smooth blur. soft pastel nature brown beige color palette smooth

defocused abstract gradient background grainy texture smooth blur soft pastel nature brown beige color palette wavy flow digital noise nostalgia vintage visuals effects dynamic vibrant textured inspired earthy colors subdued atmospheric dreamy serene tranquil calm peaceful harmony subtle ethereal mesmerizing whimsical evocative nostalgic orange design backgrounds backdrop wave yellow