This is a really small version of the https://civarchive.com/models/91158/mechabare

Use tags gynoid and broken_gynoid first, then hacked + (whatever component you want cut off) and broken_skin + (whatever you want the skin to be missing from)

Btw it's pretty bad, sometimes it gives good robot damages. I've got bigger success with the bigger model I'm training, but it keeps over-fitting, so that's something I need to take care of.

If you by any chance manage to find some good prompting or workflow for it, let me know. Currently it is hit or miss