Render a stunning 3D depiction of a wild cat with vibrant, almost neon colors, radiating a dark fantasy ambiance. The cat, with its piercing eyes and fierce expressions, emanates extreme agitation for an unknown cause. It fiercely employs its sharp claws to slash at the observer, as if fiercely guarding its domain. The backdrop showcases a black canvas adorned with striking splashes of red, orange, and yellow, symbolizing a fusion of intense hues. The overall theme is visually captivating and immensely engaging, seamlessly blending elements of illustration, painting, anime, and fashion to create a mesmerizing piece of art.