I felt disappointed in Haibara's design. Aizen's fit and theme went so hard, I loved the idea, it felt like an embodiment of "Goddess of Maternity" but then Haibara gets stuck with a dominatrix "latex" fit. The eyes on the cape is a cool but I think the eyes should plaster the entire cape or get a more "radial" order to them. Imagine if there was a more Call of Cthulhu (the setting, maybe the monster?) theme to it though. Hm...
Edit: Reading more, I think I just got caught up in Aizen's design. Damn.