Did the challenge, and for those who didn't get chosen don't worry I will do another round of this if I decided being interested of doing another one.
Characters in order:
1. Toriel © Toby Fox (requested by thecursedaquarii on Instagram)
2. Meowscles © Epic Games (requested by _katefanart_ on Instagram)
3. Um Jammer Lammy © NanaOn-Sha, Namco and Interlink (requested by Killereq on Sketchers United)
4. Princess Peach © Nintendo (requested by _cartoon._.bunny_ on Instagram)
5. Isabelle © Nintendo (requested by lilchopstick_x on Instagram)
6. John Rick © Adult Swim (requested by TaintedTruffle on deviantart)