Illustrate a group of World War 1 soldiers

conceptualized as owls, each wearing traditional WW1 military helmets and gear, standing together in a cohesive unit. Integrate this scene into a Retro Sunset art style backdrop, featuring bold stripes of vibrant oranges, pinks, and purples that form a half-circle behind the owls, evoking a nostalgic sunset theme. Use a palette of complementary colors to emphasize the contrast between the earthy tones of the owls and the vivid sunset. Ensure the scene is centered and maintains a balanced composition with crisp, clean lines, suitable for t-shirt printing, and placed on a white background. The design should be bold yet minimalistic, focusing on the unique fusion of military and avian elements, with a broad appeal.