Definitely looks like you have some powdery, I would get on spraying them now to try to keep it under control. If it's raining on them you also might consider covering them, pound some rebar into the ground and use it to anchor the end of a piece of pvc, bend it over the top of your plant to the ground on the other side anchoring it with a second piece of rebar. Do the same on the other side of your plant, and put a piece of pvc on top of the two ribs in the middle to give it support, tape/tie it all together, then drape some plastic over your mini hoop house, leaving the ends open and the bottom foot or so from the floor rolled up for ventilation. Probably the simplest and easiest way to cover in a guerilla setting.
Your plants are looking good. All those weird looking single and triple bladed leaves are normal for re vegging, expect some weird growth. Keep it up!