Ok ! First practice session ! It asks a lot of patience that I think I've lost sometimes ^^
I think I should take my time a little more, relaxing, maybe put some zen music, have a long and deep breath... It could be also a kind of meditation moment...
These exercises are a lot more difficult than I've imagined when I saw the videos. The most complicated for me, I think, is to keep it regular, constant, in the concentration in the quality of shapes and accuracy.
Thank you for your teaching, I think I am going to learn a lot by these exercises. Can't wait to try the second one ! And then, later, apply it on a rem watercolor artwork ! :D