Not sure what you sprayed but that blotch look on the leaf where its green and yellow like camouflage. That is damage from the spider mites.

To kill them off you need to stop the cycle. It take you treating the whole room every 3 day's for 2 weeks to break the cycle of life in them. You need to stop them from reproducing and that takes time to break the cycle. Use a 10x loupe or 30x pocket microscope to check the underside of leafs. They do most of their damage from the underside of the leaf. That is that blotch look you see. That much damage will stress the plant as well so check your Ph closely and try to raise the humidity a bit to give them some extra care. But you need to get rid of all the spider mites first. You may need to bug bomb the whole room every 3 days for 2 weeks to rid the whole room of them if you has an extreme case.

May I use a copy of your picture #2 for a book project?