Signature Sky is a 30”x40” original oil painting by Luke Smith. Signature Sky captures the drama of a mountain range at sunset — soft purples, pinks, and creams layered with palette knife texture. Below the snow-capped peaks, splashes of autumn color suggest the shifting season, while a single expressive stroke of white oil stick sweeps across the sky like a signature. The mark feels both spontaneous and deliberate — a gesture of connection between artist and landscape. In this piece, nature isn’t just observed; it’s signed, claimed, and felt.