A formidable Celtic druid queen stands in an ancient misty stone circle at Samhain night, wearing flowing moss-green and silver robes with intricate Celtic knotwork armor and gold torc necklaces, her fiery red hair adorned with mistletoe and white war paint, holding a glowing oak staff, fierce mystical expression, dramatic firelight illumination with warm amber and deep emerald tones contrasting cool moonlight through mist, rich details of standing stones and falling leaves, oil painting texture with digital precision, powerful dignified three-quarter composition against epic misty forest landscape, 4k hyperdetailed digital art