Help with my MTG Knight/Dragon deck?

1 big problem I see with this deck is that there is not enough lands. 24 is a good number, not 18. Running Knights alongside Dragons is a really bad idea because what happens when they use something like Disenchant, Naturalize, Beast Within, Vindicate, and a million other enchantment destruction to get rid of your Celestial Dawn? You would be unable to play your dragons and they would be dead draws. Mono White Knights can be very powerful and you wont have to worry about top decking a dragon that you cannot play early game. Drop the Dragons and concentrate on getting multiple copies of your singular knights.