A formidable Celtic warrior queen from a fictional Iron Age tribe stands atop a sacred stone circle during a mystical Beltane bonfire night, wearing layered bronze armor with intricate Celtic knotwork and flowing emerald robes dyed with woad patterns, her flaming red hair adorned with golden torc necklaces and May flowers, gripping a ceremonial silvered sword, fierce mystical expression, dramatic bonfire illumination with deep amber and copper tones contrasting cool misty blue from ancient standing stones, rich details of dancing tribal priestesses and sacred oak groves, oil painting texture with digital precision, powerful dignified three-quarter composition against epic misty meadow landscape with rising Beltane flames, 4k hyperdetailed digital art