The anime definitely portrayed Yuki's entrance more as shocking rather than fearful. You kinda get a better feeling as to why Haruhi goes all genki over Yuki right after she sits donw in the novel, since Yuki's frightful attire was exactly what Haruhi wanted in the villain.
Strangely enough, Tsuruya seemed to be the best drawn character of the whole cast this episode imo. Makes me wonder if there's a certain soft spot for her within KyoAni's animation department