A valiant female warrior clad in intricate medieval armor, merging the worlds of knighthood and the rugged spirit of a cowboy, sits astride her noble steed. She holds a gleaming flintlock pistol in one hand, the other gripping a finely crafted revolver. The majestic mountains rise behind her under an expansive blue sky, capturing the essence of powerful frontier landscapes. This high-resolution, hyper-realistic oil painting evokes the dynamic energy of Frank Frazetta, blending realism with fantastical elements.