This is a digital drawing, the software is Krita, and it has a brush called "Tilted Pencil" and it is my favourite brush on Krita :)
I will return to 3Speak, I'm sure! It's just that I prefer drawing on paper, and sometimes I do it in between meetings or during breaks at work, so video-ing is not always possible when I do traditional arts :) But yes, 3Speak is a great interface :D I really enjoyed it very much!