What can I do with my large cement retaining wall?

I love them painted a vivid color.... my fav is cobalt blue or pea green.... https://www.google.com/search?q=pictures+of+painted+concrete+garden+walls&client=opera&hs=Bze&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwim75bk3JHVAhVMlFQKHSYbCrwQ7AkIQg&biw=1366&bih=629

Your question got cut off, could you please finish it?

there was a post recently (in the past week or so) where a hometalker changed the cement block fence into a wooden fence and added planter boxes

There is a fast growing powerful vine, called Herculon, in the Bitter Sweet Family..it's leaves are shiny, bug and fungus fee..they turn a brilliant yellow in the Fall and produce crimson clusters of red berries that become evident after the yellow leaves fall...yellow finches find the berries irresistible ...easily pruned but unpruned can span 20 feet in width and height - a few guiding strings glued on the cement wall with Gorilla Glue can be used as a guide giving you control......