You've probably seen Keyboard cat (http://playhimoffkeyboardcat.com/). So, he was an inspiration for this mixed media illustration.
I was selling postcards with this picture in Bath Christmas Market (England) and all lovely old ladies, whose style icon is the Queen, were also happy about this "ginger cat playing piano"
It is lovely card, shiny surface, blank inside.
Size - A6 (148x105mm). Comes with a lovely texture white envelope.
Corners might be rounded or not. I send random one, but if you prefer one of options - contact me :)