on flip!: Sinpus LatticedDreams Bagel-mum -Nightshade- Dai-Wild Theo Zee-rex -Skeleton-(and all the other accs they used this is just the one that comes to mind) Woofibun Natsu-Tala (uhm there is more that just off the top of my head

Toon!: DapperVoxlyy ZhadinaX ImmaJerk RityhMonster_UwU peeks

career artists!: Moby Francke Skottie Young Atsushi Ōkubo Kohei Horikoshi bobthedragon(twitter) there is more but these are the people off the top of my head

ok thats it!

but wait - there is more crystal- color use deery - anatomy Parzival-comic - just,,, everything Postal - color and cute designs