A definite improvement from Call of Shadows (1), much more rounded and less like a demo. You tried a few different things and some could be tweeked or added to I think, but this is some really good groundwork. I know my reviews focus more on things to be improved but make sure you take all of them as a compliment. This is good stuff, don't forget that.
Specific Notes for this one would be that it is much more rounded than the previous but since you made it a bit more complicated there is a bit less polish to it, especially between 1:10 and about 2:15. I like what you did but some more detailing would really pull it off.
If I were to be really picky I would say that the higher melody could be a bit better, polished, or slightly more complex. Your bassline however is really awesome and it definitely carries the whole song.
I seriously look forward to hearing more from you.