Create a high-definition, premium realistic-style character portrait in Full HD, featuring a young woman dressed as a warrior goddess inspired by Greek mythology. The character has long, wavy dark hair flowing freely. She wears an intricately designed, golden helmet with red plumes and matching ornate armor. Her expression is fierce and determined, with piercing blue eyes and a poised, regal demeanor. She holds a spear firmly in one hand, symbolizing her readiness for battle. The background should include a muted scene of spears and banners, creating a sense of depth and context. The composition should focus on symmetry and balance, capturing the strength and elegance of the character in a style reminiscent of anime and manga art.