Nice variations on Dies Irae! 
Jokes aside, I loved quite a few of the arpeggio textures, and might steal them someday for my improvs.
I've used quite a few minor/ diminished arpeggios like G, C, (Eb) , F# to create a more malevolent mood, plus part of the point of what I've done is to utilise the Dies Irae and the tritone for purposes of musical symbolism.