Outside of real-life studies, what art sources have you practiced from a lot to arrive at the drawing style(s) you like to use the most today? Note - a source only counts as an influence if you've tried consistently for at least one week to emulate identifiable features from that source in your own art.

So if you want to make an ideal post, please list the sources you've studied a lot from and what you learned from those sources. Your list may be as long or as short as you wish.