Hi,
Great part.
She could use a wig, make her hair quite different. Maybe she should cover her face or wear colored contacts. The makeup could be completely different. She’d often done something with her face for undercover work that had been successful. She remembered the makeup artists she’d known in her time and wondered if one could make a mask for her that she’d glue on. That would completely change her appearance. Maybe she would just need a set of cheeks and a nose, some sort of a strip that she could put on and remove quickly.
For clothes, she could go the Superman route with spandex, but no, maybe something more opposite to her nature, something feminine. But if she was going to be participating in rescues, she’d need to maintain some of her attitude of self sufficiency and independence. Just how much of her personality would she need to change to be able to fool not only Superman but the rest of the world that would capture her on camera just like Superman.
Mask unless is lined with lead.