Files in "aerial" folder - Orthophoto: Estonian Land Board 2019. See included "Licence-of-open-data-of-Estonian-Land-Board.pdf" for details.

Files in "vectors" folder - Estonian basic map: Estonian Land Board 2018. See included "Licence-of-open-data-of-Estonian-Land-Board.pdf" for details.

Files in "global" folder - Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. See https://www.naturalearthdata.com/about/terms-of-use/ for details.