The main character must have the boldest outline. Background lines must be thinner and simpler. An expressive but clean illustration with clear, open shapes that are easy to color. Steampunk elements (gears, pipes, airships) only in medium or large shapes, with no micro-details and no repetitive small textures. A balanced composition with 70% focus on the main character and 30% on a simple background. Only black and white line art, with a pure white background. No shading, no grayscale, no pencil texture, no tiny details, no clutter. Clean vector-like outlines, bold contours for the character, thinner contours for the background. The scene shows: a young steampunk inventor boy wearing goggles, holding a single broken gear in his hands, looking at it with a soft, child-like expression of disappointment, eyebrows slightly lowered, small frown, relaxed pose.