It's really cool you went for this particular scene and to depict Scabandari Bloodeye. The physical features are great - you've got the greyness and hardness of the Scabandari features down - and the posturing of both figures is terrific.
Was Ruin holding the broken hilts of his swords at the time or had he dropped them? You may like to show them flying off into the air for dramatic effect.
The rubble falling from the sky (that's what I assume they are) kinda don't look like rubble falling from the sky.
I survived the Permian and all I got was this t-shirt.
Skin the shade of hammered iron, long grey har unbound, a gaunt, aquiline face with hard, close-set eyes. A broad, downturned mouth that bore no lines of laughter. High, unlined brow, diagonally scarred livid white against the dusky skin. - (MT TB, p.2)