I do have a bit of advice for your deck:
1) If you want to make it faster then try adding more basic lands and less dual lands that enter tapped. This way you can readily use the mana you have access to and not wait till the next turn to make a play.
2) For the spells you might want to side board the
edge of autumn. Reason being, if you draw it and you have 6 mana on the field already it becomes a wasted card. You'd be better off side boarding it or switching it with an
evolving wilds. Also you may want to add more spells that assist your knights or fall into those themes. Cards such as
Aim high,
burst of strength,
ajani's presence,
bar the door, and even
brave the elements would be good additions to this deck. Also adding spells that make creature tokens would be a good idea.
3) The knights in this deck are all pretty good. I would recommend also adding some creature recursion to this deck. Reason being, if your army gets wiped out or you decide to Ultimate Elspeth then you won't have a front line anymore . Just some things to consider here as you play.