Digitoil Painting | what is technique? (Timelapse)

See the final picture and "the river" series here here:

https://www.artstation.com/artwork/dbX3W

Many people were asking me about color, brushes and how I apply them in the program. Here I try to analyse the technical approach while you can see me painting a picture of "the river" series. The recording is played back ten times faster so it took four hours to paint. Bear with my English skills, I'm still practicing and try to say what I want to say.

find me here
https://www.instagram.com/kemaneba

and here
https://www.artstation.com/kemanski

Thank you!
Kemane