How successful is Briony Tallis in achieving her atonement?

Briony Tallis's journey toward atonement is deeply complex and ultimately ambiguous. While she takes significant steps to acknowledge her past mistakes, particularly through her writing, the true depth of her atonement remains questionable. Her efforts to confront her guilt and seek forgiveness are overshadowed by the lasting consequences of her false accusation, which irreparably alters the lives of those she wronged. Ultimately, Briony’s atonement appears to be a lifelong struggle rather than a definitive achievement.