This is my entry to Zen Coloring Contest, made with InkScape. InkScape is a totally free and open-source vector-drawing program (like CorelDraw) working under Linux.
Link to the contest:
https://steemit.com/zencolouringcontest/@magiccleatus/zen-colouring-contest-6-a-chance-to-win-sbd-by-colouring-a-weekly-pattern