Being legendary, I don't think you want all 4 monuments. however 3 should be good. also, you need
Path to Exile[/u]! You have zero removal right now in a creature focused format. Some
Condemn's might help as well. The Healers of the Pride are also too slow for Soul Sisters decks. Those would be the first cards I would remove. With those 4
gone for Paths and one monument
gone for
Condemn, you could get away with 21-22 lands, allowing space for
Serra Ascendant as well. which is one of the most powerful cards in the archetype. (W for a 1/1 with
lifelink that turns into a 6/6 and gains flying once you hit 30 life is pretty good.)