Slow down and quit spraying stuff until you know what it is you are trying to treat for. When you say you sprayed with Dr. Brunners, was that undiluted? Soapy water spray is good against aphids and other soft bodied insects, but it is usually made up a tsp of soap to a gallon of water. If you sprayed undiluted soap, that could be the problem.
Your pictures aren't real sharp, so it's a little hard to tell, but I can think of a couple possibilities. Are these plants that were just recently set out? Where were they before? Plants that have been inside a greenhouse or other protected location, need to be gradually hardened off. Some of the damage might be just sunburn from not being used to direct sun. If that is the case, the old leaves will never heal, but the plant is fine and new leaves that appear will be fine.
Another possibility is thrips, which are teeny little insects you never see. Thrip damage looks like this:
https://badger.uvm.edu/xmlui/bitstream/h ... sequence=1
Most often thrip damage is cosmetic, but doesn't seriously harm the plant, unless it is a major infestation. Healthy plants can do fine despite them. Don't over fertilize with Nitrogen - lots of tender new growth just encourages them. Both the Neem oil and the insecticidal soap are treatments for them, so you may have already taken care of them. When you are spraying stuff like that, be sure to spray the undersides of leaves.