Strange structures on luna suface - Luna Orber 4 Image

Hello all, Im a first time poster and I would like to share a luna module 4 picture that I downloaded from the University of Arizona's website : [link to ser.sese.asu.edu]

The luna 4 photos, I think, are the best photes of the moon I have seen in a while.
When zooming in considerably close(which the website does not allow unless you download it of coarse), you can see that in particular areas of some of the images, there are THINGS on the ground that seem too organised in such a way that pure chance and asteroids cannot be responsible for such a structure or landscape layout.

Here is just an example of what Ive noticed:
[link to i497.photobucket.com]

You will see 2 oval shaped tower like structures here, 1 big one 1 smaller one, with what appears to be spikes pointing out of it right the way around them all the way to the ground.
If not artificial its perplexing to say the least.

This is the highlighted image from which this close up is from.
[link to i497.photobucket.com]

I hope you find this as interesting as I do.:)