Prompt: Create an impressionist-style painting that merges a classic landscape with unique, fantastical elements. The main scene should depict a picturesque lake bordered by blossoming cherry trees on a spring morning, as previously described. However, incorporate several mysterious elements into the composition: perhaps in the distance, there's an ancient, half-submerged castle in the lake waters, or a magical-looking bird with bright blue feathers perched on one of the trees. Include weightless, glowing spheres floating in the air, adding a mystical mood to the scene. The sky could be painted in unusual shades, such as lavender or peach, giving the painting a dreamy and enigmatic appearance.