Dahlina Dress by Tania Olsen PO2656Tania Olsen. PO2656 The Dahlina Debutante Dress by Tania Olsen Designs is a graceful floor length gown that combines traditional design with a contemporary touch. The Basque waist bodice features boning for structure and a strapless neckline, accentuated by a bow detail that elegantly covers the bust cups. The full skirt flows beautifully to the floor, creating a timeless debutante silhouette. The back features a lace up closure for a custom fit,