This was one example of me practicing anatomy, which I did every day for a while. The site that I used no longer works, sadly, as it was dependent on Flash (and I no longer have the link to check if it still works, but I doubt it does). It would flash skinless (blech) humans in various poses every 30 seconds or so (you could choose how often it would flash) for the purpose of practicing anatomy. Though I didn't get that much better with anatomy, as I only practiced for about a month or so, I like to think this helped me get pretty good at posing.

This particular one was done on April 1, 2020, though I did this every day for a while. Done on MediBang Paint Pro with the Wacom Intuos S.