Your attitude to the music is that of an artist. Let the music speak for itself, no ego, no bravado, just play the notes clean and in tune. There aren't enough players like this, bravo brave Haruka!
Wonderful performance. I was just thinking about bari in a classical context (and how to use it when writing) and how so many recordings of solo works for it have a strange bit of impurity of tone (or "noise", I suppose) to them, but yours immediately caught my attention with a distinctive lack of that impurity. My biggest problem when thinking of bari in a classical context is that it didn't have the same smoothness and purity of tone as soprano/alto/tenor, so in my head it was better suited to a blending role; but you may have just convinced me otherwise.