A mischievous Tengu mountain spirit with crimson skin, expressive sharp golden eyes with fire light reflections, emerging from a misty autumn mountain at dusk, wearing traditional geta sandals and holding a magical wind-telling fan, cel-shaded with bold black outlines, dynamic diagonal composition with swirling maple leaves, deep crimson orange and misty gray palette with glowing lantern light, playful mysterious mood, scattered falling maple petals and floating crow feather silhouettes, Japanese mountain spirit concept art with soft bokeh of distant mountain peaks at sunset