Comey's suspicious tweet images and Pixelknot

Have any of you that have become adept with Pixelknot looked into Comey's Twitter images? I could not find the cufflinks photo, but certain tweets jumped out as more suspect than others. I assume some set of people all use this publicly/sloppily, and we have obvious candidates. Tweets and Wikileaks should be examined as well? Would they share a password beforehand? Would they be stupid and totally on the nose 'hailmollach'?

Image from his 'Potomac River' tweet. – Maybe there are certain objects that if in the image, indicate that the image has a code. 'cuff links', 'river', 'statue', 'christmas tree', etc.