1) Wrath is mostly artificial parts at this point, so she would probably sound and smell rather different. (Eg artificial heart won't sound the same, her joints moving will be different since she has a composite skeleton... hell, her blood probably smells weird too, since it's full of synthetics and nanites). Totally okay for him to tell she's the bionic woman.

2) Wrath smells like paint, gun oil, and sex. Also, she owns a fox and a cat, so there's probably some of that, too.

3) I imagine he'd be able to tell that she spends most of her time trying to be as slow as a normal human and not crush things with her grip.

4) Nope.

5) Considering Wrath's absolute love of glitter, Garrett better be careful.