As the wife of an Army Colonel recently back from there - BAD IDEA. I asked him to be sure and he said no nude photos are allowed in Afghanistan. Period. He said he couldn't count the times guys got written up for it and it was a bad idea. They never stay just between husband and wife either.
nothing will clearly identify the branch
I can almost guarantee that a member of the military can identify the print of the camo and say exactly which branch wore them. What they're currently wearing in Afghanistan right now is called multicam and it closely resembles the camo of the old BDUs. Not similar at all to the much hated ACUs with the digital pattern with no black.