I finally found her--the artist of the paintings I copied!
Her name is Anne Tavoletti. She used to be a fashion illustrator in New York City. That's a job I think I'd really enjoy...I'm assuming the paintings we saw at Burlington Coat Factory come from her Fashionistas collection (and now that I've seen there's more than the three, I want to do more, too!); Here are the original paintings compared to my copying, just so you can see what I was working from:
Left: hers, Right: mine - she must have used acrylic paint rather than watercolor, wouldn't you think so? I've wanted tempera and acrylic paint sets since I was about 12 years old. I love how thick and bold they go on.
It does take some more belabored swallowing of pride to put these up side by side with all the wrinkleage going on in mine...but I'll do it.