Hey Musi.
I listened to your fuge and prelude. I enjoyed your interpretation.

Pity, the piano is out of tune as my ear get used to a reasonable tuned piano.

, I wish I could have recored it for you on my grand.

Anyway, here is my 2 cents:
At begining of fuge, first 2 notes and the following, requires a better pharsing. I can hear two voices from this fuge correct me if I am wrong.
Both need to improve on your dynamics and shading of tone, try to play some part "pp-p" imagine you are playing on harpcichord' back in Bach's time...
Breath a little in between parts.
All the best from Australia.