Whimsical boathouse, Art Nouveau style, intricate ornate details, flowing curvilinear lines, organic forms, sinuous shapes, biomorphic motifs, ornate metalwork, stained glass windows, wooden accents, rustic textures, lush greenery surroundings, serene lake or river environment, warm golden lighting, misty atmosphere, mystical ambiance, 3/4 composition, panoramic view, symmetrical framing, dreamy soft focus.