These are some beautiful center pieces! You’ve got some good ideas going here.
For the first two shots, I think I’d have tried getting a little lower to the ground to emiminate the hovering feeling and maybe trying to eliminate some of the distractions on the concrete.
I find there’s a few too many subjects in the door picture. My eye doesn’t quite know where to go. Maybe try focusing on one or two centerpieces from above to incorporate the stairs? Or one straight on, zoomed in, with the door as background?
I really like the fourth one! Good set up there! The only thing I might tweak would be to zoom out a bit to incoperate the full pink flower on top and the bottom edge of the vase.
Two and four are my favourite shots, Lydia; good work!
Hope this helps a little. 🙂