Great pics indeed. Lighting is a key factor, and he's got it right!
You may find it hard to believe but only lighting was a standard 4 ft fluorescent fixture in the kitchen. That is where the s90 shines. Great Low light and macro performence. I really enjoyed using this little camera the last couple of years.
I have a Canon powershot A1100Is just a couple years old, Takes good pictures but lighting is a issue at times. At night I'll just shut off the lights and use the flash, they come out better that way for me. I usually take about 5 moneyshot pictures and then post the best one