You've built a deck which sits an interesting fence, tokens are an aggro strategy, yet you've splashed blue for control, my advice: drop blue, go mono-white, also you need to decide if you want to go white weenie or white humans, white weenie would say drop the CoPs and pick up more token cards, Intangible Virtue, Lingering Souls, Timely Reinforcements, stuff along those lines, if you want to go humans then you should add some Silverblades and Nearheath Pilgrims along with probably dropping the elite vanguard\s, they're not as good as they seem, if you want to splash a color you've got tons of options, you could keep the blue but not use any of the cards you're currently using, adding control to aggro does not work, you could however add Wingcrafter, vapor snag/unsummon and if you're going tokens and add a bunch of token creating spells I'd add delvers. if you add green Rancor is an option for humans, not really for tokens though, and Champion of Lambholt is a pretty good option either way. For red there's not much Hero of Oxid Ridge is a decent choice even if it is rotating, Reckless Waif is decent, but doesn't really fit the deck I'd rather use Somberwald Vigilante than Elite Vanguard anyday, don't bother with black if you're staying in humans, if you go for tokens then it's like a requirement, if nothing else just so you can flashback lingering souls
Hope some of that helps