I think the composition is really interesting and the subjects incl. the great walkway leading to pavilion in distance, the grasses, and the shadows crossing, etc. There is some aspect of this image that reminds me of the work of Andrew Wyeth and is very nice - perhaps looking at his work "might" lead to some options/direction. The sky is so wan that it is a bit of a problem though - maybe you have a darker exposure - one that would appear to have "more blue" in it - this plus a fraction more contrast might help this image. Not sure. Alternatively, you could crop off the top 1/8th and the right 1/6th - and convert to B&W. There is some potential here in monochrome with shadows, shape and brightness of walkway etc,etc. It was worth the attempt in trying to capture - nice scene.