How does Carnival Evening show Henri Rousseau’s detailed painting style?

In his 1886 debut work, Carnival Evening, Henri Rousseau demonstrates the meticulous, literal approach characteristic of naive art. His detailed painting style in this piece is evidenced by several specific techniques:

• Deliberate Tracing: Every branch of the trees is individually traced, reflecting a commitment to literal representation rather than impressionistic suggestion.1
• Focus on Costume: Rousseau places a greater emphasis on the intricate details of the figures' costumes than on the figures themselves.1
• Solid Forms: The clouds in the painting are rendered with a curious, distinct solidity.1
• Atmospheric Observation: Despite the literal nature of his drawing, he achieves a poetic quality through sensitive and accurate observation of the colors of the evening, creating a striking atmosphere.1

This work established his reputation for a style that, while lacking conventional academic perspective, utilized precise lines and colors to project intensity and a sense of still, frozen space.12