A painting of a man sitting on a rock in front of a large moon

A circular shining golden luminous magical portal [portal of golden light like created by Dr strange] opening on a beach [at 45 degree angle], a warrior emissary [looking like african-arab person, dressed in light brown persian clothes, alpha male figure, a persian turban on head], coming from another world to this world from the portal seated on a muscular black great horse [half horse inside the portal, half horse outside the portal], horse galloping, night inside the portal, morning outside the portal, sun on left side of portal, background lighting, focus on horse, sun and portal