I don't have a dog, actually, so I don't understand which ear-flapping motion means except for sadness. However, now I think your drawing style (and animals) is so cute - I felt so sorry that at the first time I replied that your style was not my favorite which can be rude... And maybe... if the big dog, whose ears were flapping all the time, was next to me, I would give him (or her??) a hug. XD