Can I make pastel blue grimdark (colour scheme walktrough)

This is how I paint my pastel sisters of battle. I hope you like the video. Description of each step is in the subtitles. List of paints Vallejo: black surface primer game air charred brown model air concrete model air pale blue model air light blue rlm76 model air light blue model color dark blue pale model color dark sea blue model color field blue model color light green blue model color dark blue grey model color royal purple model color blue grey pale model color german cam. black brown model color cavalry brown model color bronze green model air chrome metal color steel model color burnt red model color red model color german fieldgrey wwII liquid gold old gold