Turns out sculpting flames isn't that hard as long as you don't overwork them. You want to keep large areas that you can paint later. Try and keep them looking fairly soft, and keep working in one direction to get the flame tips.
After I'd started painting I decided I didn't like the chisel tip to the sowrd any more so filed it back to a point instead.
Here he is with all down with lots of directional lighting was a bit of an experiment adding flame colour to the armour, I used orange ink to try and keep the colour transparent and let a bit of the metallic still come through.
Here he is facing off against a McFarlane Dragon action figure.
