I have to say they are looking great! One thing I would advise is that you test your pH, it is one of the most important things in growing. Reason being is that different nutrients get abosorbed at differnet pH levels. It is not as importat at the begining of a grow but as the plant gets older and bigger it will almost always become an issue if not checked regularly(believe me I speak from experince) I killed my first 2 attempts at growing because I did not know how important pH is to the growth process, and believe me it is a very dishearting feeling to be 4 weeks into a grow and have them all die by week 6. You can get at the very least litmus paper pH test kits that cost like 5 or 6 dollars(US). Good luck on your grow you look like you have the green thumb, sending great grow Karma your way