Pic 1 - no idea (what did you use to treat the spider mites and aphids and what was the temp when you treated them?)
Pic 2 - without seeing the underside of the leaf - that looks very much liike spider mite dmg. It could also be early downy mildew, but my bet would go to spider mites.
Pic 3 - Looks like fert burn or sunburn as there doesnt seem to be any curl in the healthy part of the leaf. Looks like it also has some spider mite dmg.How many leaves are like this?
Pic 4 - Could be any number of insects.
Overall suggestions - If those were my plants -
I would spray with Permethrin (Eight) - This would get rid of any insects and does a good job on spider mites. (I wouldnt suggest Sevin Dust or any Sevin product as it will flare the spider mites)
For plants that have leaves like those in Pic 2 -Foliar feed them with something like Jacks Classic
. It does a very good job of helping those leaves recover and also has all the micro nutrients.
Also you can test the leafs in pic 3 by spraying one of them with the foliar feed. If it gets worse then its probably fert burn. If it is fert burn then about the only thing I know to do is heavily water to flush it. N is highly mobile and should wash out readily. If the inner part of that leaf starts to look better after you spray it with the fert then I would suspect sunburn, however if you have spider mites directly on the stem of the leaf I would think that you would get that effect. Also Neem Oil will sometimes do that to hops -so if you sprayed with any Neem Oil product and then it gets hot it can dmg leaves.