Every year I make a new online avatar for myself. It's a nice tradition as it gives me a short break from big and ambitious projects. This year I used Procreate for most of it (I used Pixelmator for the circle and Photoshop for a bit of last-minute tweaking).
I started out with the more complex sketch below, but in the end I came to my senses and kept it simple and readable for small sizes. :)