Secret Surprise Revealed

My sister's back from England, where she spent 10 long months (which now feel quite short) to get herself an eccentric and snobbish attitude, a beer belly, loads of heavy books and art exhibition catalogues and most importantly to deepen her obsession with the art of drinking tea. I wanted the secret surprise I had in mind to welcome her back to be related to the latter. It should be a teapot! As I'm not skilled enough to build a three-dimensional one I made a flat version, that could be used as a wall hanging, inspired by similar vessels hanging in the windows of the pottery studio. Finally, here it is: