my noob 2 cents... i like this picture..very clean, no distractions.. and i especially like the very clear blue sky...no clouds nothing just clear blue..great capture!! nice colors, composition wise cant comment...noob my self.. :thumbsup:
For that, i think you did not capture what you wanted to achieve. reason, because you are only showing a very tiny part of the park.
But you did capture the memorial and the city skyline but the trees are a slight distraction. But would prefer the memorial more to the right, as you have a nice leading line towards it. A little more interest in the foreground might help this pic, i find it a bit too empty.
I guess there is little choice : you either live with the trees; or go closer, concentrate on the memorial and lose the buildings.