Ole Ahlberg's early paintings were formed by the maxim "a picture in a picture in a picture", like a set of Chinese boxes. Now he uses only one central picture surface and one central scene in which the action takes place. He has also replaced his earlier Vanitas symbols like peeled lemons, hourglasses and skulls with more contemporary themes.
You can say that Ole Ahlberg has abandoned his subtle illusionism in favor of a more "normal" painting style but without sacrificing the mystery and ambiguity in his art.