I would like to know if it is good to wok from computer screen to practice gesture drawing. I try to do it everyday and I found it is a good exercise to do it from a screen. It is easier than to start to print photos. I practice also from sketching people in the train or restaurant but is kind of difficult : people are moving or looking at you drawing. But it’s real fun for me. Do you think it is a good exercise? Thanks for your advice.