Lush Tropical Foliage Border in Watercolor

botanical illustration of a lush tropical foliage border along the bottom edge, layered palm fronds, fan palms, broad banana-like leaves, delicate ferns and small wildflowers, a few warm orange-brown leaves, dense greenery rising from the lower frame with large empty negative space above, vintage hand-painted watercolor and gouache style, fine botanical detail, soft paper texture, muted sage green and olive tones, cream parchment background, airy natural composition, calm tropical garden atmosphere, no text, no watermark