Eliza Doolittle, is a character from George Bernard Shaw's play Pygmalion, a cockney flower girl who has to pass herself off as a high society girl. In this case Eliza Doolittle is a girl from London, trying to pass herself off as a 1960s soul singer.
'Piano Song' is an apt title, as the old joanna features heavily throughout, playing the same rhythms that hundreds of Motowners have done already. You know it, even if you think you don't. The songs you hear in a movie scene where a couple are being all romantic around Christmas time.
Eliza has a lovely voice, but then again so does everyone in these days of X Factor and all the other glorified karaoke competitions. Sadly, as nice (in the best and worst connotations of that word) 'Piano Song' is, it doesn't do anything that wasn't done a hundred times better 40 years ago. If you've got nothing to add to the heap, don't dump your track on it.