You know, I just finished watching the series and I have to say that Saeko became my favorite character very early on.
Anyway, after spending some time looking at fan art and cosplays of the characters, I must admit that this is one of the best Saeko cosplay photos I have seen. I kept wondering what was making me come back to your photos time and again, and I realized just now what it was; the eyes. You've got them. Visually striking, penetrating and beautiful. Well done.
Keep up this amazing work, and welcome to my watchlist.