Candid shots in the house

Just bored out of my mind. Happened to be testing the Sigma EF-500 DG Super flash I got off the eBay. Still trying figure out the optimum setting on the A2 for in-door shots while using the Sigma flash. It's a bit difficult because the Sigma flash underexposes the shot in some situations. I seem to get better results (correct exposures) if I bounce the flash of the ceiling. If I point the flash directly at the subject, it underexposes the subject. Maybe it's because I'm using the the Omni diffuser from Sto-Fen. More flash pictures will follow. Below are few good ones so far (minor post-processing in PS CS, mostly crop and USM).

1st and 3rd shots were taken with the flash bounced of the ceiling. The other 2 were taken while the flash is pointed directly at the subject. Notice the differnce?


Let me smell your hair...


Let's check out daddy's Xbox game collection before anyone notices...


Did I do something wrong, again?


What you looking at?! Don't make me go after you!