I just got my first speedlights and wanted to try to do something fun with them, a friend agreed to be my model so I could test them out. Iwas suprised how well it went. The only thing I might want to change is the reflection in the eyes. I only have a fairly small umbrella so the reflection is quite small, not sure what I can do to make it a but more prominent.
Nice single light portrait. if you have another speedlight, use the second light as a hairlight frome above and behind to help separate him from the background which would help the photo pop.