Sedum is unconcerned with what the old patterns are and why they exist. This essence just wants to break the chains and get and keep moving regardless of the circumstances. This is important if the current state of affairs is still reinforcing the old patterns.
Buckwheat Flower can't get over the past because the lessons from it haven't been understood enough to integrate them into present wisdom. This is for understanding the patterns of the past. There is far less terror and resistance present than with Fresh Perspective/Aries Full Moon.
Fresh Perspective (Aries Full Moon) understands terror about the past. Learning from and breaking free of the past hasn't happened, because it is too frightening to even consider.
Power Cleansing (Leo Full Moon) is done with the past and seeks to simply clean house. Lessons from the past have been learned and integrated and now it is a matter of breaking the old habits which have been discharged of their energy.
Crimson Rose brings focus to the here and now so that current circumstances can be seen for what they are instead of through the eyes of the past. The present is all that matters to this essence.
New Creative Outlook focus on taking the freedom from a break with the past to create something new. This targets not being able to look forward to the future. The other "breaking patterns" essences are more focused on the past.
Effervescence is made from an entirely fluid source: energetically potenized water. As such, it contributes to fluidity, malleability and flexibility, particularly of the emotions.
Red Rose sees the entire spectrum of the past, present and future. This essence traces patterns as they were created in the past, the footprints they are leaving now in the present, and the trajectory they describe for the future should the pattern not change.