She is Peggy Carter, an undercover agent with bright red hair tied into a tight bun. She wears a sleek green suit and a stern expression, ready to take on any criminal or enemy in her way. In her hands is a fierce gun and a steel shield, both of which she is prepared to use to protect the innocent. To empower the image, give her a golden-yellow glowing halo of determination and valor. For the combat details, use a combination of dark blues, browns, and grays to give her a soldier-like aura. To bring out the greens in her suit and the reds in her hair, contrast her with a background of blues and purples. For her gun and shield, use both silver and gold to emphasize their regal and powerful look. Create pops of color with pinks, oranges, and teals against the more muted background shades. This will help to make Peggy stand out and capture the viewer's eye.