Here's what the money looks like over here. Chairman Mao -- the controversial former leader of the People's Republic of China -- is all over it. Here's a profile from Time about Mao Zedong if you're curious as to who the man is on the money.
As for how much this is worth: the 100 yuan bill (upper left corner) is worth about $15.00 by current exchange standards. It goes down from there. The 20 yuan bill is worth $3, the 10 is worth $1.50, the 5 is worth 75 cents and the 1 yuan bill -- it only is worth 15 cents but I keep accumulating them. Then there's that 0.5 yuan bill -- it's worth a measly 7.5 cents and fills up your wallet, too.
To me, anytime I'm in a foreign country, I spend money a little more freely because it all feels like Monopoly money to me. It morphs into something very real when it gets onto my credit-card account a few weeks later, but I always seem to forget that part.