You've got a minor typo in Totemist because you state that Chakra Binds start at 4th level despite the table indicating the Crown Chakra opening at 1st level. Why did you move the chakras around so Totem is opened later and Crown is opened sooner?

I am worried that bonus essentia for high ability scores will result in an overabundance of essentia.

Are you planning on offering soulmelds and binds and such as feats like MoI does?