This is my first experience taking cuttings for storage so there are mistakes and lessons to be learned. The two factors that affect proper opening are cutting the blooms at the right time and the second is storage temperature.
Some of the cuttings I took too early, the buds being too hard, the flowers wouldn't open. That is shown by the tight pink ball of Sarah Barnhardt near the hosta. The red peony near the hosta is wilting and not looking fresh because this one was cut a bit late. Storing it near the fridge door also hastened its wilt. Henry Bockstoce is not opening properly either because I cut it still at a too hard stage eventhough the petals were starting to open. The best ones are those cut at the right time as shown by the white and the pink single. Those are opening properly and looking very good.