The backside Mickey mark on the 8" Duffy I bought on February 14, 2013 looks very much like my Tiny Duffy (magnet Duffy from US 2010) and Tiny Shellie May (magnet Shellie May from Japan 2011).
I don't mind the Mickey mark on the Sulley costume--the circles of the ears are still mostly distinct--but I'm not a fan of the one on the new bear. Of course, most Duffies here wear pants, so in that regard it's not the worst change in the world.
Even before the changes, I came close to buying a used and Duffy from eBay, because the original ones are that much nicer. :P But I don't want to get into buying full-sized clothes from Build a Bear, Disney, etc...I need to sit down and make them.
The First Star, I think your Duffy has an absolutely adorable face!