Light and Shadow Knight Portrait

Create a dramatic square fantasy portrait titled around the theme of {argument name="theme" default="Light and Shadow"}: a female knight shown from the torso up, centered, with her body split into two opposing halves. The left half is luminous and fiery, with wild flowing {argument name="light side hair color" default="golden blonde"} hair blown outward, warm cream background, orange and magenta paint splashes, and bright high-contrast highlights. The right half is dark and gothic, with deep {argument name="shadow side hair color" default="black-blue"} hair, navy ink washes, a gloomy castle silhouette in the background, and a vertical sword standing beside her shoulder. She wears ornate engraved black-and-silver medieval armor with a decorative cross-like chest ornament, rendered with gritty ink texture, halftone dots, scratches, splatters, and mixed-media brushwork. Add exactly 2 opaque rectangular face-obscuring blocks: one large warm beige-to-dark-brown square centered over the left/middle face, and one dark navy-to-gray vertical rectangle over the right face, slightly smaller and positioned higher-right. Use a dynamic fashion-illustration/comic-poster style with explosive paint splashes, rough paper texture, sharp contrast, and no readable text or watermark.