Christmas card shoot. C&C please.

I like the concept. You also have a nice control of the subjects. The only thing I would change is the flash. A little too much for my taste.

My rule of thumb is meter for the ambient then add a touch, maybe 1/2 to 1 full stop below to fill the shadows and thats it.  Here you have a black curtain background which sucks up light making this a very difficult exposure. It looks like you also had conflicting color temps as well, making this ever harder.

With all that blubbering said, still a cool shot!

--
thanks,
Apice
http://apicephoto.com/
E.P.T.A.S.