A full-length image of Velma Dinkley's character and personality embodied within the muscular physique and proportions of Marcus Fenix, maintaining Velma's distinct hairstyle, facial features, and iconic orange sweater, adjusting the costume to complement the new masculine form. The background should incorporate visual elements and aesthetics from both the Scooby-Doo and Gears of War franchises, creating a cohesive and visually striking composition.
