I like the contrast of the park with the huge buildings in the background. You also have wonderful tones as you always do. I think it could still use something maybe someone in the photo at the picnic tables or walking down the trail, but other than that I like it
I like the curved leading line a lot, and the detail, the sky, the variety of greys, and the contrast between the serene picnic area and the tall buildings looming in the background that must be full of hustle and bustle. I too would like to see one or two people in the shot. But still, even without the people, it's wonderful to me!