good job, excellent looking. You got all the right equipment at more or less the right time, and its paying off!
Now that all the foundation is set (lighting and your methods so far), you need to be concerned about the smaller things that can potentially have a big impact.
Depending on how much time a day you devote to learning about things, you should really be thinking about ideal ppm levels and pH levels, and keep those very ideal. Also think about whats in your nutes, such as additives like molasses. This is where you can REALLY maximize on your experience and get them to the best they can be. These are you BABIES and the healthier they are the happier you are!