To whereami: i wonder what are those patters too !!
 

I also wonder what that patter is in the sky.. I reduced the size, increased the sharpness, converted it to b&w then saved at 85% quality to keep the size of file within allowable limit. When I reopen the file i found these patterns in the sky..I wonder why.. I also dont knw if this desaturation makes it good or not.. anyway, I will post the original color one again..you can judge !