Here's my CBJ and often mid-pack competitor opinions:
Chix-I'll agree with Crash and the other guys that comp chicken just ain't what it used to be. Uniformity is
very important. The picture makes it look a little black and, to me at least, black is not good. A glistening mahogany is what we shoot for (yet rarely seem to turn in).
Ribs-they look pretty good. I'd almost say a bit underdone (though that is certainly subject to the individual slabs) as the meat is only coming back from the bone a 1/4" or so.
Pork-I'd say this is your most appealing photo. Again, you really need to pay attention to every stinkin' little detail-most comp cooks will tell you they go absolutely crazy when putting together the boxes. It's never quite perfect enough.
Brisket-I'll echo the sentiment of a dry look and the lack of smoke ring.
You need to understand making an award winning turn-in box is not for the faint of heart. As I said, details matter but think about how your entry is presented-the table captain will open your box and carefully go round the six judges at the table and they write down their appearance score (yes, before they even taste it). If they look at the box for 30-60 seconds while it's being waved around, that's a very careful inspection. Will they score you down for too-wide brush bristles?? Maybe, but probably not directly. A flawless box will definitely take you further than a shlocked-together box.
The greater the detail the sharper the overall picture.