The longer I stared at the power first the more I realized that while the blending was good the highlighting didn't provide enough contrast. I've added several new highlights and actually did bring it up to GW Blazing Orange - even going so far as to add a touch of white.
The white accents - being the laurels and skulls - still need some work. And I'm likely to add a bit more highlighting to the fingers. The freehand on his shoulder spells "RYNN," the homeworld of the Crimson Fists, but I'm not pleased with how it turned out and will redo it. Hopefully I can come up with something more interesting to freehand there too.
I am much happier with the model at this point. I have now spent more time on this power fist than I do on most of my models. I hope that the effort shows when it gets to the competition.