A few days ago, I shared a hand-drawn data visualization I made for my stepfather for Christmas. I also made a similar visualization for my sister, showing the countries we've visited together.
This one was more challenging, as I didn't have as much data or an obvious visual style to reference. So I made it more abstract, with circles for each country, sized by population, coloured by the reason for travel, and connected in the same continent.
The ink from the Copic markers bled through a bit, which was a shame. But I think it came out pretty nicely in the end.