Very odd П, г, н, ь, ъ & I don't really like Л, ы, у. The Serbian letters are incorrect. Because it's a script, it must either have Serbian cursive alternates for г, п, т, ш or have no Serbian glyphs at all, just not to confuse people.

Hi Dmitry. Thanks for your feedback.

I posted this on the general discussions forum also to try to get as much feedback as possible, so that I can progress with this job.
I gave some feedback here: http://typophile.com/node/121098
When you say you don't really like Л, ы, у do you mean they are incorrect?
Do you have any examples of the Serbian cursive alternates for г, п, т, ш that show how they should be?

The letters in the initial post are from MacOS Cyrillic codepages.