Your portraits are amazing. Did you shoot with a higher ISO in the first? I can't tell if it looks grainy, or if its the paint on the wall. Maybe my screen is needs a cleaning. Either way, I love the first and if it indeed is a bit grainy I love it more for it!!
Yes, a low light situation, and very high iso. I keep saying I want to take pictures using natural light, and I always end up taking pictures at night in poor lighting situations. BTW, Alexmachine, I love that you're learning to use flash effectively. I'm still in total "antiflash" mode. I'll have to overcome that eventually.