Desert Witch Concept Art Under Dune Sun

An epic desert witch standing on wind-swept dunes during golden hour. She wears flowing, weathered robes with intricate runes and a wide-brim hat partly shadowing her face. In one hand she grips a tall staff topped with a glowing crystal, while swirling sand and sigils rise around her. The distant horizon shows ruined caravans and jagged rock formations, with cacti dotting the arid landscape. The sky shifts from warm orange and pink near the horizon to cool teal and indigo higher up, creating dramatic cinematic lighting. The scene is rendered as high-detail concept art / matte painting in a painterly digital style, with depth of field, dust motes, and realistic fabric textures. Mood: enigmatic, powerful, ancient; color palette emphasizes ochre browns, burnt sienna, and electric-blue accents.