It's kind of a complex issue for me. When I first registered here, my alter ego didn't have a name. I still needed a user name for the forum, so I used Matrioshka.
Matrioshka are the Russian nesting dolls, one inside the other. It's a metaphor for my life, one layer inside another, the exterior hiding many different things. Most of the people that know me know nothing about my crossdressing, and I prefer to keep it that way.
It's an odd name to use for a person. In English it would be like naming your kid "Little Mother Doll".
Right now, I'm using Katrina for a femme name. Me and my GG friend spent some time just throwing names around. Trying them on, so to speak. Katrina clicked. Hell, something better may come along, but for now Katrina seems to work.
M/Katrina