These are the new 2014 Arabia Moomin mugs featuring Moominmamma and Moominpappa and they are replacing the old ones. The illustrations are made by Tove Slotte-Elevant and the colors are lovely apricot and dark blue.
The original drawing by Tove Jansson, on which the Moominmamma illustration is based, can be found in the book Comet in Moominland.