Since the Nitrogen cycle has completed (ended in Nitrate), and your other phases (ammonia and nitrite) have gone to zero, it looks like, yes, your tank has cycled. After you add some creatures, etc., get ready for the next phase (I am no longer talking about the nitrogen cycle here): brown-colored diatom algae. This is natural and expected but ugly. You needn't remove it all, just worry about keeping your front glass clean. Snails will help too. Next comes green algae. You may have to cut back on lighting duration (from 12 hours a day down to 8 or 9 hours) if you get too much. At 8 weeks you might see little white bugs on the glass; they're copepods, and your fish will eat some of them. Next comes ????