I believe you need to add some dolomite lime to your soil. The plant in the first pic is showing early signs of magnesium deficiency. You can get some good lime from the garden store. It is made by Espoma and it is really good for keeping the pH in the soil in proper balance as well as supplying both calcium and Magnesium in the proper amounts to serve your plants. If you cant find the Espoma any of the powdered or tiny grain dolomite lime will do, but don't get the Hydrated lime as that is almost always just calcium. You want Dolomite Lime.