Any advice and rating on my Magic Deck?

Well mono white decks are very good these days. You need more cards to make them better tho. Buying the white preconstructed deck from magic 2010 core set will help you a lot since it will add you cards like honor of the pure and elite vanguard, adding red to deck is fine in small dosis so you can splash cards like lighting bolt. Just note that making it a 3 color deck will slower it a lot since with white you want to play small and fast creatures. You made a good choice with your starter deck, stick with it and buy and get more cool white cards, buying 2 of the same starter deck helps too, two white zendikar decks and 2 magic 2010 white ones will help you make a solid strong deck, splashing red then its an option.