Good song, but
To me, this doesn't belong with the other Chaoz songs. It just doesn't have the energy that all the other Chaoz songs have! It is still a good song, but I personally wouldn't include it in the Chaoz series.
As a song in itself, it is good, although it does still sound unfinished. The inconsistencies that you refer to as mood changes are too frequent, and cause the song to not flow very well at all. The transitions are stiff, abrupt, and too numerous. It's like you've combined several different song ideas into a compilation of unfinished songs; none of them ever really become anything more than a demo.
As another addition to the Chaoz series, this is a disappointment. As a ParagonX9 song, this is mediocre. As a song compared with the average Newgrounds song, this is a good song. I hope to see another true Chaoz song from you in the future! I hope the shortcomings of this song are simply a result of you feeling pressured to release another Chaoz piece, but if you are going in a different musical direction than my own preferences would like, more power to you, I'm sure it will work out great.