Sophitia and Zasalamel styles should have been swapped around at least. The former has the crystal rod which is close to a mace...
I see it more as a bewildered and confused look on his face. Makes it look like he's completely baffled by what Sophitia is saying.But i'd give Siegfried more of an intrigued face.
He looks rather disgusted, which he has no reason to be.
I mean who wouldn't like new happy memories?