เจ้าหญิงอัศวินศักดิ์สิทธิ์ในเมืองปราสาท

A full-body anime fantasy illustration of [a beautiful holy knight princess] walking forward with an upright, confident stride and a calm, heroic expression. She has [long pale blonde] hair, loose and flowing dramatically to the side with fine strands catching the light. She wears polished silver plate armor adorned with ornate gold filigree, layered pauldrons, gauntlets, cuisses, greaves, and sabatons over a flowing white tabard and split cloak trimmed in gold with subtle cross motifs. In her left hand she carries a large white kite shield with an embossed gold cross and border, and her right hand lowers a longsword angled beside her leg. Set on a sunlit cobblestone lane in a medieval castle city between aged stone buildings, with an iron streetlamp, patches of green ivy, and heraldic banners hanging overhead. In the background rises a majestic fairytale castle with towering spires under a bright blue sky with glowing clouds. Tall vertical composition, cinematic rim lighting on the armor, intricate metal reflections, and a high-end fantasy light novel cover aesthetic.