Extraordinary fast musical perception, sight reading ablities and intelligence, altogher aka talent is the only explanation for your huge output. If I see myself, almost same time bit differently distributed (around 10 hours a week organ playing, and 6-8 hours piano playing, occasional some weeks gap for solely guitar playing however). And during the time I post one piece you post 20 or even more. On the Chopin Ballade1 I hang on since 15 months now

Beautiful job! I thoroughly enjoyed listening to both of them. The amount of music you learn in such a short time span if amazing to me.

Your piano sounds really good to me.

Talent, sheesh... I wish I had some of that. I am a plodder, a toiler in strange vineyards.
As far as the WTC, I have lived and breathed that for about 10 years, so definitely not learnt these in a short time span.