Hello,
I am not well versed in Ottoman blades but yours is definitely not of the classic Ottoman shape.
I don't even see anything to point towards Balkan origins.
To my eyes, your blade is a classic European (my guess would be German) trade blade very similar to the European hussars blades.
I attach a photo of a classic Ottoman shamshir, one of a classic kilij and a hussar's for comparison.
With respect to the dress, it is certainly Ottoman but whether Turkish or Balkan, I cannot say.