Way too much information at the start! I got to some place where I could reset and got the talents. Description says it has only one talent available, but I was able to pick one out of several of them. At the start, it was not clear - I ended up klling red guys, and converting white guys to blue and getting a bit lost. Then I clicked on the main statue and started getting stuff.
My first suggestion would be to streamline tutorial instead of just throwing everything. For example: keep the gate window hidden; freeze it at 90%. When the person has converted/killed all souls "This real is a bit empty, right? We could open the gates and get new souls"
Slowly introduce each system. Start by getting just the statue, have the person collect some 10-20 energy. Then unlock a white soul, have the person convert. Explain what blue souls do. You do not need to talk about different types of blue soul - the player will only get neutral blue souls until an upgrade. On the upgrade, make the next soul convert and move the camera there. "Cool! See? Now this is a warrior soul, it will fight the red souls"
I spent quite some time holding a click at the statue, then collect the blue energy/flames around, then click at the statue.... Not sure if this is the expected behavior, but it took me quite a while to start getting much stuff. Some upgrades require 600+ of energy!
But in general, game is nice! Several systems, good interaction between, them, lots of skill trees with meaningful decisions. Even in a very early state I liked playing it after things clicked!