:salamext:
I have to say, Jawharah and Ramlah have pretty much summarised my views on the matter. However, I don't think it's permissible to wear kohl in front of non-mahrems unless your eyes are covered, as this is a form of beautification. Not only that, but many people consider the eyes to be the most attractive feature of the face. This isn't a problem for me personally, as I cover my eyes too. I'm not sure if this is what you meant by niqaab? I am used to the full covering being referred to as the 'sittaar'.
My husband's gheerah over me makes me feel both safe, and proud. His gheerah is within the limits of the sharee'ah, and with regards to those matters which are simply his personal preferences, I am careful to guard them even in his absence.
As for my own sense of gheerah, al-Hamdulillaah I never have had to speak to him about it, as he's very sensitive regarding non-mahrem women, and acts with hayaa, wal-Hamdulillaah.