The crop is a little unbalanced.
Ever so slightly.
The abundance of hair on the left, combined with it being brighter than the hair on the right, constantly pulls my eye to the left. .......
That is called a lighting ratio. It is a known and proven method to help create a 3D rendition of a 2D image in portraiture. This is something that is sought after. It would suit me if the ratio was increased.
A reflector camera right would make an improvement as well.
I'll give you that. A reflector would bring out some highlights on the shadow side, but unless other measures are taken into account, the modeling
may be lost or greatly reduced. If that were to happen, the overall effect that redessa has achieved would be moot.
C'mon subscuck, you gotta admit this image is a quantum leap from what we usually see from people just starting out, especially for a SP.
redessa, I think you have several things going for you with this SP. You don't mention anything but the one new flash, but it is quite apparent from the catchlights that another light source is in play. If you have used the new flash on-camera as a fill light, you have done this very well IMHO. The shadows on the nose are nearly perfect. My crit would be that your main light source be placed slightly higher (vertically) so that the nose shadow drops further towards the upper lip..... about half way.
Thanks for sharing.