I'm not equipped for Portrait photography. I have an on-board flash, and a Speedlight, but no umbrella, softbox or what-not.
This snapshot was taken during a fund raiser for the Girl Scouts - he's the grandfather of one of the girls.
I just thought the picture would look really good in B/W, with the clutter removed.
It's still not a "Portrait" - but I think the conversion came out pretty well. (Patting myself on the back!)
Colour OOC - cropped and adjusted in LR:
BW Conversion: