Looks like it follows the topography, with cliffs (or a bluff) on the right side, and following the hillside around to the west. The area forms a natural circle it looks like from the topo view.
I would be interested in hearing the designer's artistic statement before condemning him/her. There may be good reasoning behind the "sculpture." Without the statement, we don't know.
It could only be seen from the air. The maples stand out and would form a cresent visible to aircraft. As I said before, who knows the symbology without an artist's statement.
Not a bad design by any means, but I gotta go with inappropriate for the memorial site until I read a darn good justification from the designer/artist.
Why not make it a complete circle? The circle is symbolic of continuance, of faith, of steadfastness, of strength, of eternity. Symbolic of a circle that will not be broken.
Far as calling up and questioning, I would tend to get upset and might fly off the handle. However, you gotta think about it like this. Ask about the design and say, "I'm kinda thinking this cresent design could be misinterpreted, just so you know, and was wondering if you might have thought about this, cause I gotta say having an Islamic cresent there doesn't seem right to me." Especially where pilots can see it.
I dunno. I think it has the potential to upset people, unless there is a solid reason for the design being as it is, akin to it being a victory symbol...the way pilots mark up kills on their planes by using flag markings. Don't use it unless that's what it stands for to honor those who fought back against terrorists and defeated them. Which is what this monument is about.
Les