Ribs - Don't show the bones. Put the bone end of the rib under the others and put to the back of the box. I can't explain this, but they don't look "done". I don't know if it how the bark looks or how the slices look, but they look a little "stiff" like they aren't going to be tender. Were they tender or chewy? I'd give you a 5.
Chicken - That skin looks like it is going to be rubbery. It is all stretch out like a fat lady in a girdle. Skin doesn't cover very well. Color look okay, but the edges where there is no skin doesn't look good and will probably be dry. I'd give it a 5 (because I don't believe in 2-4 for scores. A 5 is deadly enough.
Pork - Looks dry and toss in (but you covered that). Good bark, so I'll give you a 6.
Brisket - I need a closer picture, but you are getting a 6 just as is because of how sloppy it is. Straighten up your slices so they are facing the same direction and have the same distance from each other. Don't show half of the face of one slice and then a sliver of the next.