I'm not sure one can say much of anything objectively about art.
While I was taking piano lessons, I found out quickly that I had "messy octaves." Most times my hand would over-extend and the almost-octave would end up sounding like a mistake. A "mistake." It was a mistake as long as "success" was defined as playing what was on the page. So that meant I got a lot of reminders to lasso in my pinky and clean up those octaves. I mostly just really kind of didn't change at all.
And another thing was the inconsistent tempo... playing faster when I was really enjoying a part of the piece, and playing slower when the composer had written something tricky. And I looked, and behold, a pale horse! And its rider’s name was Metronome, and Hades followed him.
Anyway, I recently wrote a song that embraced inconsistent tempos and messy octaves to remind myself that I'm not taking piano lessons anymore.