Prepare:
Refrigerate until cold. Have ready:
Arrange half of the ladyfingers or cake pieces in the bottom of a 2- to 3-quart serving bowl. If the bowl is glass, make sure that each layer of ingredients touches the sides of the bowl so that the contrasting layers can be seen. Sprinkle with, if desired:
Spread with half the preserves. Sprinkle with half the berries or fruit slices. Top with half the crème anglaise and sprinkle with half the nuts. Top with the remaining ladyfingers, more liquor, if using, and the remaining preserves, fruit, and crème anglaise. Whip until the mixture holds soft peaks:
Spread the whipped cream or pipe it decoratively on top of the trifle. Sprinkle with the remaining nuts. Cover and refrigerate for at least 3 hours, or, preferably, for up to 24 hours before serving.