Grow light lighting is kind of difficult to see (especially for me since I'm color deficent) in photographs but it looks like your plants are happy but then on the other hand you only had those plants since Feb, right? Only time can tell you. If I were you, I would add another grow light and lower them a little closer to the plants but distance is also very hard to tell in pictures.
Hope this helps. I gave you the light duration, temps etc. do you still have it?