I'm unsure how much of this will stay canon.
"Test 29 has ended in abject failure. None of the subjects survived. The evidence is clear, and regrettably, I can only conclude there is a connection between test results, and the sobjects' age. It appears I will need younger subjects... and a clean lab coat." - excerpt from Queen Luna's notes during the Calamity, detailing her progress in creating the Lumerians.
Program: Clip Studio Paint
Tablet: Artisul D16
Time taken: 2 hours 50 minutes