doodle autumn leaves set. black hand-drawn outlines. simple black silhouettes on a white background.

autumn leaves doodle final line cartoon drawing monochrome artwork sketch diagram logo set black hand-drawn outlines simple silhouettes white background minimalist vector outline graphic design projects nature-themed branding packaging wrapping paper patterns seasonal designs digital leaves leaf set drawn isolated outline doodle ink hand-drawn autumn decorative vintage pattern single print flat park linear seasonal contour art sign collection white botanical drawing shape silhouette object monochrome sketch flora simple symbol ecology fall black tree forest botany design graphic season element natural plant line nature foliage