hello autumn banner in doodle style

abstract acorn animal art autumn autunm background banner beautiful beetle berry bird botany branch bug card cartoon childish children collection conceptual creative decor decoration decorative design doodle drawing drawn eco ecology ecosystem elegance element fall floral flourish flower fly foliage forest graphic green greeting hedgehog hello icon illustration insect leaf line natural nature nest organic ornate outline owl paper plant retro season set shape silhouette sketch stick style summer symbol tamplet twig urchin vector wasp welcome wild