Hidden Tropical Oasis Waterfall

A serene watercolor and ink illustration of a {argument name="subject" default="hidden tropical oasis"}, featuring a multi-tiered waterfall cascading down rugged, moss-covered rocky cliffs into a clear, tranquil lagoon. The water transitions smoothly from bright, rushing white foam to a {argument name="primary color" default="deep, calm turquoise and emerald green"} pool at the base. Dense, lush vegetation, vibrant green ferns, tall wild grasses, and overhanging tree branches frame the gorge, casting soft shadows along the canyon walls. The entire scene is rendered in a beautiful sketch-and-wash artistic style, combining delicate, detailed black ink linework and cross-hatching for texture on the rocks and water with soft, bleeding watercolor washes that evoke a peaceful, refreshing, and untouched natural landscape.