Who are the Pokémon on the decoration in the Viridian City Pokémon Center?

In the Pokémon anime episode 2: Pokémon Emergency!, Ash sees the following decoration in the Viridian City Pokémon Center:

Ash tells Professor Oak via videophone that the blue Pokémon in the top right corner is the Pokémon that he saw at the end of the first episode (Ho-Oh), although he didn't know its name. Personally, I think the one in the top left looks more like Ho-Oh, plus it is red which would match its Fire type, but what do I know.

If the top right one is Ho-Oh as Ash said, what are the other Pokémon in this decoration?