A highly detailed full body concept art illustration in the style of a dark, soft-focus plague-era oil painting on canvas. The scene features a young Viking warrior girl, dressed in intricate, historically inspired clothing, embodying a biomutant aesthetic within a dystopian setting. The painting showcases micro details with a focus on textures reminiscent of an octane render, capturing the character's fierce and resilient expression. The hues used evoke an atmosphere of mystery and darkness. The painting avoids elements such as duplication, blurriness, and abstract distortion, ensuring a clear representation of the character without cartoonish or overly animated features. The composition is well-framed, avoiding disfigurement or deformation, with accurate proportions and anatomy. The setting around her is subtly out of focus to enhance her presence, using a natural color palette to avoid oversaturation. Elements such as grain, poor anatomy, or unnecessary mutations are deliberately omitted to maintain the integrity of the artwork. The scene evokes the haunting ambiance of a dystopian world while maintaining the essence of the Viking legacy and the resilience of the warrior spirit.