To Cut or Not to Cut

I while ago, I painted two flowers on some fabric. I left it sitting as I wasn't sure where to go from there. Digging in a cupboard recently, I found some pieced vintage grandmother's flower garden, so I pinned them to the background randomly. It looks kind of neat, but I can't decide whether to trim the bottom edge or leave the vintage fabric. Ooh, cutting those 30's cottons will be hard. Suggestions?