Seen on Tamsin Greig's character, Jackie, in the British comedy, Friday Night Dinner. This blouse (shirt? top?) even made it to the script. They wrote a joke about it, as the neighbor, who's been stalking Jackie, tells her he actually knows how to play the piano and then attempted to grope her chest. :D
No idea where this top is sold in the UK or if it's anywhere online. But I just really like how whimsical it is. For someone in her mid-40's probably (I'm talking about the character, Jackie), this top suits her. It's cute, right?