Technically this is a good image and well composed but apart from the historical component not particularly noteworthy.
If I may be so bold, if possible, I would try to reshoot this either early morning or a sunset with low directional light and at least some cloud in the sky.
The low directional light will at least accentuate the texture of the beach and concrete remnants of those fortifications and the cloud will give some interest value to the sky.
Tony Jay