This majestic horse spirit stands proudly atop a grassy hill in a wide open field. The white horse with a black mane and tail is poised and looking straight at the viewer, its gaze exuding confidence and strength. In the background, dark green pine trees stand tall in the dusky backdrop. The wind blows softly and the sun shimmers against the horse's soft coat. To color this majestic animal, you can use shades of light brown for the coat, with lighter accents to add a hint of highlights. For the mane and tail, add some dark browns and blacks to make the horse stand out against its natural landscape. For the background, use shaded greens to create a peaceful yet powerful atmosphere, and for the sky, use lighter blues and yellows to create the perfect sunset.