Veillon’s paintings often depict serene, intimate scenes set against the backdrop of vibrant Eastern landscapes. His works are known for their precise use of light and shadow, capturing the warmth and depth of the exotic locales he visited. He frequently painted portraits of Eastern figures, particularly women, as well as architectural scenes and outdoor views of marketplaces, temples, and courtyards. The artist’s attention to detail, especially in the rendering of textiles, clothing, and architectural elements, brought a sense of realism and authenticity to his work. Veillon’s ability to evoke the unique ambiance of the regions he portrayed helped solidify his reputation as a talented Orientalist.