Valley Under the Northern Lights in Watercolor

Watercolor painting of a serene valley at night under the northern lights. A winding river cuts through soft meadows with small pine trees along the banks. Distant mountains form a dark silhouette against a deep indigo sky. The aurora borealis swirls overhead in ribbons of emerald green, magenta, and electric purple, casting a cool glow on the landscape. Use wet-on-wet watercolor with translucent washes, gentle gradations, and soft edges; let the colors bleed into each other to create a luminous, dreamlike atmosphere. Foreground details include dew on grasses and a light mist rising from the river, while reflections of the aurora shimmer on the water. Overall mood: tranquil, magical, contemplative, painterly.