Concept artist RPG X

Artworks i've made for Concept artist RPG X contest.
I wanted this to be a story about dark sci-fy\fantasy hybrid. Where people are just one side of ethernal conflict and constant science and tech improvenets also affected metaphysical beings like angels or demons.
According to contest backstory i used 'evil is good' concept, thats why i tryed to make heavenly creatures even more hostile than hellspawns, yet i wanted to keep some holyness vibes, just twisted in some way.