A formidable Mongol khanum from a fictional 13th century steppe empire stands atop a windswept sand dune during a golden desert sunset, wearing layered crimson and silver silk robes with intricate golden thread embroidery and fox fur collar, her long black hair in elaborate braids adorned with falcon feathers and jade ornaments, gripping a ceremonial jade whip, fierce intelligent expression, dramatic warm amber and copper lighting contrasting cool violet shadows from distant snow-capped mountains, rich details of caravan silhouettes and ornamental yurt poles, oil painting texture with digital precision, powerful dignified three-quarter composition against epic golden desert landscape with rising dust devils, 4k hyperdetailed digital art