“I follow “Dina D’Malchusah Dina” as per Halacha.”
Again, I don’t believe that DDMD applies to a law going against the Torah. As PBA pointed out, would you say that DDMD would make it halachicly prohibited to do a bris milah?
“it was not an untzniusdig picture according to standards set forth by law of the land”
Again, I do not care about the standards of the land. I care only about the standards of the Torah.
“by the laws of this land… are allowed to post pictures that are not obscene (and they are NOT, even if they are of a different tznius standard than your own)”
Wrong. If the Torah says something is obscene, it is obscene. Period. Nothing to talk about.
If anybody has “different standards”, they are simply wrong.