That sounds pretty plausible, but I’m not sure.

The windows are only very slightly off center, inconsistent, and even the ones above the clock are as well (although the clock mechanism could extend both up and down).

But I also don’t have any better explanation.

What exactly makes this stand out as AI to you, and not just cosplay?

I can’t really find any of the telltale signs of AI. The books on the shelf all look fine, the mirror on the left edge looks perfect and I can’t find anything immediately noticeable on the costume.

If this is AI, I think it’s probably just the face, maybe the whole person, but certainly not the whole picture. But maybe I missed something, please let me know.