Flat vector blog illustration with a locked four-color palette

Flat vector illustration of [CONCEPT OR SCENE, E.G. A PERSON WATERING A PLANT SHAPED LIKE A LIGHTBULB], in a modern editorial style suited to a blog header. Composition: a single focal scene positioned slightly left of center, with generous empty space on the right side for headline text to be added later, and silhouettes clean enough to read at thumbnail size. Style rules: simple geometric shapes, flat color fills only, no gradients, no 3D shading, no outlines, minimal facial detail (dot eyes, no nose), slightly oversized hands and objects for character. Palette limited to exactly four colors: [COLOR 1], [COLOR 2], [COLOR 3], and [BACKGROUND COLOR] as the flat background. Use the darkest of the four for small accents and the brightest for the single focal object. Light source implied from the upper left using two-tone shading: each shape may carry at most one darker shade of its own fill color. Wide 16:9 aspect ratio. No text, no watermark, no photographic elements, no texture or grain.