The Amazing Princess Who Doesn't Smile

This OVA focuses mainly on Rosetta, who must train for her first leading role in the "Princess and the Fool" show. One day, a strange painting arrives at the Kaleido Stage, a painting that seems to be a portrait of Rosetta and Fool.
As the OVA continues, we find out more about the Princess/Fool couple, about their forbidden love. Rosetta runs away from the Kaleido Stage, believing she isn't talented enough, but along the way she learns a lot about herself and returns in time for the show.

Legend of Phoenix ~ Layla Hamilton Monogatari

A new show, on Broadway. Layla and the acrobats of the Kaleido Stage are called for a big performance: The Golden Phoenix, with Layla and Sora as the two Phoenix's. However, the tension is building up, and Layla feels the need for solitude. She goes on a bike trip, meeting various people along the way and sorting out her feelings. We find out the story of Layla Hamilton, the girl whose mother died when she was young and who vowed to never cry again so as not to disappoint her father (and herself).
Sora, Fool, May and Ken set out on a search for Layla in Cathy's car and manage to find her, bringing her back. Layla goes through a physical change which she says is necessary for a new beggining. Both of them having found their Phoenix's, Layla and Sora's performance is a huge success.

Good Da~Yo! Goood! (It's Good! Goood!)

This OVA is merely a collage of 3 different scenes: May's cooking lesson (where she is assisted by Sora and Layla), Rosetta teaching Ken the basics of the diabolo (although Ken fails most of the time and Rosetta doesn't encourage him too much), and Marion and Jonathan's seal language lesson to Sora (which is trickier than meets the eye!).
All the characters are in chibi form, and the backgrounds are 3D.