@rsms hi, I'm Russian.

When it comes to Russian, I find the capitals of К and Ж quite weird, as I am not used to them having such present horizontal bars; it's not wrong, though.

I can't really speak on behalf of other languages, sadly. However, I want to point out that the Serbian Dje (Ђ) seems to have its "tail" descend under the baseline; is that a common thing to do? All I've seen were the versions where it sits atop the baseline (e.g. Helvetica)