"Design a vibrant, futuristic banner illustration for an alternative asset investment platform focusing on art and collectible marketplaces. The scene showcases a bright, promising future where an individual confidently invests in unique art pieces and rare collectibles, symbolizing growth and financial success. Surround the investor with glowing charts, futuristic digital devices, and floating pieces of art and collectibles, framed in soft, modern hues of gold, silver, and deep blue. The backdrop includes a city skyline illuminated with warm, golden light, representing progress and opportunity."