Carefully lift baskets out of pan and let cool on rack. In a bowl, toss peaches and berries with honey, lemon juice and vanilla. Let stand at room temperature, stirring occasionally, at least 15 - 20 minutes. In a small bowl, stir together sour cream and remaining brown sugar, adjusting to taste. Just before serving, divide sour cream mixture among baskets.
Fill baskets with fruit and drizzle dessert and serving plate with some of the remaining juices.
Sprinkle remaining nuts over dessert.