Initial marks are vital

Painter Carolyn Roberts works fast and intuitively after the preliminary sketches. She says the initial marks and washes are vital.. “if these don`t convey that sense of freedom”, then nothing really helps afterwards …(https://www.claireleach.com/new-blog/2018/11/15/artist-interview-carolyn-roberts).

Small finger exercices beforehand may help. As piano drills. Here are couple of my small drills.

Finger exercices 1

Fingerexercices 2