LogoPond

That lil nub at bottom right looks like a foot. This makes his entire lower body look like it's on backwards. That square mouth looks like a stock market chart gone mad. Actually an apt innuendo for this project. His whole body stance is not dynamic. A frenzied shopper's body language would be more contorted. Why are the hands crab claws? The hair-lick on top seems matted together. Frenzied shopper's might have a little wilder hair. Overall it seems like you've restrained the character to make excessive shopping seem somehow sensible and under control. In reality most shopping (likely this client's intent) is a manipulated message to invoke an outmoded primitive response. See the Frontline documentary online called "The Persuaders".