Characters in Pokémagical Gijinkas should be designed as gijinkas, with no ears, tails, etc. of the Pokémon they're based on. They should also be designed with their nature in mind as their personality. Including their characteristic is optional. Unless they're shiny, they should use the normal coloration of the Pokémon they're based on. If they're shiny, they can only use official shiny colors.
Designs should be submitted by commenting in the appropriate thread in the approval forum. Once you have the approval proof, you may use the character in the ARPG.