How much are you watering looks pretty wet let it dry. Are you feeding? If your not over watering then looks like nitrogen deficiency. Let the soil dry some. About a week. Then give it a light feeding. Check out nectar for the gods. Medusas magic, herculean harvest, and demeters Destiny great products for organic soil grow. If you have the extra cash check out Zeus juice too. That's stuff will fix about everything.