Are the people that will get an option which shiny pokemon they want to pick either Azumarill or Spinda (if u don't know their movesets u can check it in pokedex)
Additionally smeargle statue
Everyone that participated in contest can expect this outfit:
and golden scorbunny medal/token
and some people might receive a small gift like it was mentioned
people that won shiny tell me on discord or in private message on forum which shiny you want