Hettie's Pirouette - Children's Picture Books, #4

Hilda the hippopotamus and Hettie the heron both love the ballet. They join the Ballet school and begin training. They enter the end-of-year competition for couples (pas de deux) and perform five movements, the pose well known in the ballet Swan Lake, the movement that shows the bond between the two dancers in the ballet Le Diable à Quatre, the movement where the dancer being held by the partner is able to descend very low to the ground and can be seen in the ballet The Fisherman's Dance and demonstrates a sense of friendliness and love and finally a pirouette with Hilda giving Hettie a hefty spin to set her off.
The result seems disastrous. Can the two budding ballerinas still win the competition despite this set-back?