Maybe it might be a good idea to have a more "Neutral" party of sorts in Drachenseele.
Like, maybe (due to spoiler reasons), I have the Tarako and modern descendants of the Dragons and the Ancient Dredge not know that they are the descendants of said ancient races and thus think that they're just an entirely separate species that can tap into the power of of either ancient species for some unknown (to them, anyways) reasons. Thus they are a bit more "Outsider looking in" perspective to the conflict between the Dragons' creation and the Dredges' destruction if that makes sense.
Or maybe "Machines vs Nature" could be a better theme to explore given the colossal hippie I can be when it comes to environmental issues....