I too fought mites.
Every week I took all the plants out to the garage and sprayed them under every leaf and on top of every leaf.
I alternated with Neem, pyrethrums, and a sesame/habanero oil spray.
A different one each week. It took six weeks to finally not see one under a magnifier.
All these sprays only work if you douse them well. The bugs have to be in contact with it. I examine a leaf on each plant once a week.
You will see more bugs (if not most of them) on the undersides of your leaves.
The best applicators are those pressure pump sprayers, because the wand allows you to spray undersides, and the spray bottles don't spray when inverted.
I apply so much, the plants are dripping and the garage floor soaking wet.
If you are using the correct dilution ratio, plants can handle the sprays.
Once you can visibly see the mites, eggs and damage, it's pretty far progressed.
That is why I inspect my leaves with a magnifier on a regular basis.
Catching things early, is your best defense.
Those plants look pretty unhappy buddy, I hope you can save them.
