Ruby is standing alone on the lobby of contest Hall, looking with his red eyes and great pride at his Swampert: Mumu, who at that moment, holds the most recent contest ribbon that they had won in a Pokémon contest

You have done great, you were beautiful and unbeatable!

He seems to be congratulating his Pokémon. Ruby is an excellent coordinator and lets it show, showing off his best skills. He feels confident, encouraged and with his head held high