Create a dynamic, anime-style portrait of Thorfinn, the main character from Vinl

Create a dynamic, anime-style portrait of Thorfinn, the main character from Vinland Saga. Thorfinn should be depicted as a fierce young warrior in his late teens, with a lean, muscular build that reflects his years of training and battle. His face is sharp and intense, with a slightly narrowed, determined gaze. His wild, shoulder-length blond hair flows freely, framing his face, and moves naturally with the motion of the scene. His eyes are a piercing green, full of resolve and a hint of melancholy, reflecting the weight of his experiences. Thorfinn is dressed in a tattered, sleeveless tunic made of rough, earthy brown fabric, with a leather belt around his waist, holding a small pouch and the sheaths for his twin daggers. His arms are bandaged, showing signs of past battles, and his hands grip the hilts of his daggers tightly, ready for action. His stance is low and aggressive, as if he's about to leap into combat. The background should depict a cold, windswept battlefield with dark, ominous clouds overhead, hinting at the harsh, unforgiving world he inhabits. The lighting should be dramatic, with strong contrasts, casting deep shadows and highlighting the tension in the scene. The overall mood of the image should capture the essence of Thorfinn's relentless pursuit of vengeance and his inner turmoil, all set in the gritty, historical atmosphere of the Vinland Saga world.