I ordered my first flash last week, and been reading this thread since!
They look slightly underexposed to me, which is strange, considering that you were shooting at f/1.8... I don't see too much of a black bar, but maybe try slowing your shutterspeed to 1/200 or even slower... How far away was the flash? Enjoy the new gear!





For setup, I put the flash up high on my stand with a tight grid aimed (although not too well) at the couple. I left the flash in the frame (forgot to flag it) for reference.

