Its a nice paint job, but if you want it to sell for a decent price you need to change the color of the cape. Light blue on a Khorne character? All the little Khorne demons and troopers would eat him alive and call him a sissy. I suggest either a dark red, black, or grey.
Overall the colors seem to be laid down quite nicely. However there is very little depth to be seen here. Even some simple highlights in the reds and golds would make this guy pop just a bit more. I do give credit for the glow of the lava. Would be nice to see some of that at Kranon’s feet.