Hi stormygirl
I have to agree with mic - there is no obvious central point of interest in this photo.
From what you have written, the subject may be the memorial, but the viewer doesn't find anything that compels them to stay there. Also, you have photographed the side of the monument opposite the sun, so the detail is slightly too dark. A reflector or fill flash, or shooting the sunlit side, may have given a better outcome.
I don't think the DOF works - there is not only the tree, but also the traffic sign and fence to contend with. As a suggestion, to isolate the memorial, you might have to raise the camera position and shoot downwards, so that only the grass is the background. Hope this helps, it's meant to be constructive.
But, what I do see is someone looking outside the square, looking for a different perspective.
The other stuff comes with practice, but imagination is essential.