I had a hard time to design her summer/spring dress as a 12th anniversary art (which was yesterday February 9th 2011 ).
I thought she'd look cute in her sun hat with a ribbon and pansy flowers. I always imagine that Mariko dresses up that way on maybe on like fancy and lovely picnic with her family and friends during spring or summer. having a picnic in a park somewhere in London or Ebon. Or having fieldtrips.