Art I made. Sorry, no fancy process on how I did it. Brushes are just default brushes you'd find in the brush section. Most of the brushes I used for coloring required me watching ads to get it. You can use all brushes that would require you to get a membership for 4 hours. (that's so short compared to 18).
First time making a piece in Ibis without giving up halfway through. Made using my iPad and a finger (I'm too broke to afford a Apple Pen). Time took is 3 hours and 33 minutes.