简约卡通风格蓝色绿色橙色鱼类游动场景生态环保主题插

minimalist icon design, main colors blue, green, and orange, fresh and bright color scheme, four fish icons with varied shapes, simple line art, decorative elements like stripes and water ripples, circular surrounding design, pure white background, clean and crisp visual effect, conveys information related to water, ocean, or fishery, fresh and natural feeling