Cook orzo according to package directions. Drain and rinse in cold water; set aside.
In a large bowl, combine the pudding mix, sour cream and pineapple. Toss banana with lemon juice; stir into pudding mixture. Stir in the oranges, marshmallows, pecans, peaches, cherries and orzo. Fold in whipped topping. Sprinkle with coconut. Cover and refrigerate for 2 hours or until chilled.