I love the full-color versions! For the monochrome ones, what do you think about putting them within a rounded rectangular frame like the full-color versions do? Right now the "femaleness" of the monochrome icons is not communicated as well as I think it could be; to me they look more like plugs than ports.
You mean like this?
To be honest, it's going to be a lot harder to create a good male version regardless of what the female version looks like. I only included the -female part because it's more accurate than just rj* and it at least leaves the option of implementing male versions, if that ever becomes necessary.