People may have been right in their suggestions of joining up the plants into one or 2 bigger beds. You may also need a gravel path to get to your urn so you do not wear down the grass.
I would probably choose a sundial over an urn, but that is just me.
Here are a couple examples stolen from the internet. Note the straight formal lines in one, versus the swirly lines in the other:
I think you are off to a great start. Come back an post more pics once you get it together, I would love to see the final product.
Edited to add: your trees in the back line do not appear to be healthy. You may wish to investigate. It would ruin your formal garden to have a line of dead trees.
