I posted my first few images to my Photo.net discussion thread and it elicited this response:
Mark Chartrand , Apr 12, 2009; 12:40 p.m.
I think your lighting is very nice on these subjects.
FYI: Direct lighting (just above the nose – or “on the axis”) has often been referred to “Hollywood” or “Butterfly” lighting as it was quite popular with “stars” in the 40’s and creates a “butterfly” shaped shadow just under the nose. It is really quite a flattering lighting setup, especially when used with soft focus on females.