Mozart Sonata in B flat K570

[tingxints]

I went to '*CM' diploma exam last week. I played above mentioned 'Allegro' & 'Allegretto'. For 'Allegro', The examiner told me, don't you think you should ending exposition with forte? I answer, I want it ending with p, and I start development with f. He doesn't agree with me.

I know he is far more professional from me, but my question is in some instances, is it the dynamic performance is personal own interpretation? When I practicing this piece, I had listen to many pianists playing this 'Allegro', there are lots different styles. I learn from which I feel is better (to myself).

But, after exam, I know I ruin it. I need suggestion here. Thanks.