How to make pixel art :
Draw with any tools/style that you're most comfort with
Then after finished-> click menu "edit"
Select "add fx"-> "Pixelization"
Choose option "square pixel" -> adjust the density/size 5px, 10px,.. As you wish
(Smaller size=more detailed, bigger size= more pixelated)
When you're satisfied with the looks -> click OK
Done! You've made #pixelart
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Unfortunately that's not available here, so you've draw them all manually :p
Original artwork from "Test" https://www.colorslive.com/details/4735823