It's highly unlikely that an image showing the skull would be made available on the web by authorities. Something like that could possibly be leaked later, but you won't see it on a major media site.
Unfortunately, the images posted in the media are small and with low resolution. Even the clearest ones are nothing like the original which is probably 15MP+ and could be enlarged to poster size before pixellating. If you try to enlarge any of these much at all they begin to distort and no longer accurately show what was captured.
If you must enlarge things, it often helps to view them standing 10-15 feet from your monitor. But the pareidolia thing cannot be avoided. Our brains are "programmed" to recognize and isolate common entities, especially so for faces and human figures. It doesn't matter if those things aren't there - as they will "pop" right out like a face in a cloud.
With a Where's Waldo game, you already know that Waldo is somewhere in the picture. But with these crime scene photos we do not know if any physical evidence is in the image. Some or most of these may not show any evidence at all. Pareidolia will ensure that we find stuff.
