Yes very well done. When you first see the scene when the queen enters and this happens...it comes across as a real miss, and I wondered if it was foreshadowing like she had gotten hurt or messed up by the fighting, as that was just not the sort of miss the grand herald of the tower would make. And then to find out the truth later was awesome.
You actually also see the same thing with Elayne as well. When she sees him, there is a moment of surprise, a look of "hey what are you doing here?", but then she is pleased and happy to see him and you think nothing of it....until later on.
Very well done.