I would say you could easily make Engie a bit bigger. She's certainly not going to be the smallest of women.

Or you could just add her goggles or something. I dunno.

Yeah, I'd agree on thickening femgie up a little (right now, femscout has a thicker neck), and not just fat-wise. She's gotta carry around a pretty decently-sized toolbox around and metal for her constructs, so she'd have some natural muscle to work in. Also, dropping her jawline or sharpening it may help, as well as give her face a more mature structure.

Dayum, girl! Do continue. I would agree that Fem Engie's neck could be a bit thicker. And maybe fuller lips would help? That might just be opinion, though. I guess I always picture Fem Engie with full lips. Anyway, I'm excited to see more from you, I like where this is going.