So, i am not really the computer artist. i have neither a mouse nor a tablet (i use chromebook), so what sources do i work on?
Mostly traditional, but also on gods gift to this earth this website called ibispaint, where you can actually draw (on fingers or with a stylus) on your phone, make the lineart, color it and at last upload it for the world to see. it's a inspiring place that never ceases to stop amaze me.