Simply fantastic!
I love the idea of the blues and yellows, but seeing it in reds and orange would have been delightful as well.
First, I'd like to say, that the preview image had me staring for a while, so I finally clicked, and then my Internet went out.
I felt like, someone deep into a really good book, and then the book just caught on flames, and disintegrated .
O__o

Now, onto the critiquing, (finally after 15 minutes of clicking refresh..)
The figure, kinda creeps me out. He looks like he knows a lot of a variety of things. Very intelligent, and masterful. Maybe the leader of the War.
His weapons have obviously been used many times, and he doesn't look like the kind of person who's afraid of anything.
The colors, really pull me in though. I just love the mixture of blues you used to show excellent contrast.

But, at first, I was really confused as to where his head was. Then, I finally saw it. The hair really threw me off, but now it makes sense. His armor made me mistake him for something else, though I'm not sure what.

Overall, this image had me almost crying because I couldn't see it's full-view, so I think it's a very successful piece, and cannot wait to see what you come up with next.
Fantastic job!

As always, I find your coloring brilliant. The soft transitions from one shade to the next, and the wonderful use of lighting makes for an excellent piece. The hooded figures in the background really create a sense that the centrain character is leading an army, but the rear figures are faded enough to keep the focus squarely on the "general." The bright sunburst helps to draw the eye across the picture, but I think it might be too bright. As I look at the picture, I find myself drawn to the sky more than the central figure.

There are two major points that I find odd. First, the figure's hair throws me off a bit. While it has stylish points, the hair sticking out so sharply suggests either an extremely strong wind or that the figure is tumbling backward at very high speeds. Judging from the picture as a whole, it doesn't seem like either of these is the case, so I feel like his hair is extremely contrary to the motion of the piece as a whole. The piece as a whole lacks enough movement to make that hair flow feel believable to me. If I were to suggest a way to keep the hair, I would say to add more visible effects of strong winds. It would take a very strong wind to make someone's hair fly like his -- hair does have a surprising amount of weight and doesn't just fly around willy-nilly. Otherwise, his hair should probably curve down instead of up to reflect the weight. All told, I feel there needs to be a lot more motion throughout the picture to make the piece properly accept that sort of hairstyle.

The other part is something I'm just not sure I understand. What is that silver streak among the hooded figures? A river? Some sort of metal bar? It seems to be at eye-level with the hooded men, but at the same time it separates the army. It feels out of place to me and I would probably replace it with more hoods. Alternatively, if you were trying for some kind of lighting effect, I would put lighter-color hoods in that section to make the army continuous, but also allow the light play.

All told, this piece does a good job of conveying an army prepared for battle, led by a general ready to kill.