A breathtaking portrait of a young, slender woman with defined abs and a modest chest, clad in intricately detailed medieval armor that reveals her midriff, elegantly posing on horseback in an open field bathed in soft golden sunlight. The image captures the exquisite craftsmanship of the armor in ultra-realistic, highly-detailed 10k resolution. The scene exudes a timeless elegance with a balance of natural beauty and historical charm as the gentle sunlight enhances the overall serene ambiance in the expansive landscape. The composition remains pure and clear, focusing on aesthetics and authenticity without any visual interruptions or distortions.