Create an illustration of stacked metal bars labeled "GOLD," "SILVER," "ZINC," and "COPPER," using a gradient of colors for the bars, with a soft-focused background, close-up shot, 50mm lens, f/2.8 aperture, ISO 100, natural lighting for enhanced clarity.
Create an illustration of stacked metal bars labeled "GOLD," "SILVER," "ZINC," and "COPPER," using a gradient of colors for the bars, with a soft-focused background, close-up shot, 50mm lens, f/2.8 aperture, ISO 100, natural lighting for enhanced clarity.