hxbuff, I am seeing nothing but random shapes. And even if symmetrical, and even if man-made, ...... ok, and you think this could mean "treasure" ? And any reference to Oak Island (similar objects, or hints-of-treasure) is to most certainly distance your object from treasure.
If you (or any of the Oak Island faithful) lie on their backs and stare at the passing clouds, you can find shapes of bunnies, triangles, clown face, the big dipper, etc..... So too am I not seeing anything in your pix. You can stand blind-folded and throw a rock in any direction. And you will no doubt hit something un-canny shaped, or man-made shapes . And do not necessarily mean "treasure".