I'm glad you came out and cooked with us buckinbbq, and I think it's always better to err on the side of too much meat rather than too little. This is all just my opinion as I've never judged, but here's my take on your boxes: Brisket - showcase your slices more while filling the box, but don't pack it. Yours looks packed, and some looks like it's with the grain, which is not good. Pork - not too bad, you've included some bark which is good. The middle pulled stuff looks a little flat and mushy like pork salad. See if you can give it more texture/more of a pulled look. Ribs - put in only ribs, and only your best and prettiest ribs. I usually put mine (spares) bone side down and arrange in rows. Give them a nice shiny glaze before turn in.
Like you said, you need to figure out what the judges want. Some guys don't grasp that concept and bang their heads for years. Good luck and keep working at it! :-D