Did Leonardo da Vinci create the Renaissance style?

No, he did not. Leonardo belongs to the High Renaissance and before him were the painters of the Early Renaissance, such as Masaccio, Filippo Lippi, Fra Angelico, Ghirlandaio, and Botticelli (all those in Florence). In Venice the Bellini brothers and in Mantua Andrea Mantegna. Those are a few of the many painters who developed Renaissance painting.