Those two look great. I have to guess that the spotted plant was the one right under the light. Since you have three, why don't you consider putting the plants in a triangle shaped position, with an opening in the middle. Also raise the light some. Some people say that a good rule to follow concerning lighting and its heat is to put your hand right above the plant and if you can feel the heat from the light on the back of your hand, the light is probably too close and should be moved up some. you could buy a mover but personally I wouldn't want to spend the money for just three plants. So how about raising the light and putting the plants in a triangle shape, then spin the pots around to expose the other side of the plant to more light once or twice a day. That should be fine. Best of luck.