Your light needed to be higher up and also angled upwards. Higher up to avoid the glare off the faces and angled upwards so more light falls onto the back row instead of blowing out the people up front..
'I reject your reality and substitute my own' -Adam Savage..
I bet they're really happy with the picture..
Yes, you have to pay attention to the background next time, and yes, you need to get the flash farther away to control falloff, but you already know that..
About Grandma's face the key to a lot of good portraiture is often makeup..
A little powder works wonders, and some other makeup, depending on the subject, handles pimples and skin blothces better than software editing does..
Thanks for the comments..
This is going to be tough next time - I had the softbox against the low ceiling, and my back was against the wall. The only way to get more working distance would be to take the backdrop off the stands and hang it directly on the back wall. That would probably get me an extra 3 ft or so.Apparently my basement is a little too small!.
Nice shot, given the limitations. Makeup (definitely) and an overhead "hair light" might have helped too...
Thanks guys for the comments and the advice!.
I had another session since then, at the client's house. I didn't use a backdrop and I think I should have. I'll post later..