I think it's good. I like the way you put the four nation symbols. The clothes on Korra looks very realistic. Her posture looks realistic too. I think her face is a little different than what it is supposed to look like. I like the way you used shading. The colors accent her form and clothes. Her face isn't as realistic looking as it could be. It is the only thing I really see that could use a little more look.
Over all, good job on your piece of Korra from The Legend Of Korra. I think it's really good.
Hmm good but you can do better. Before I say how this could be better I'll tell you what I very much enjoy about this image. First the colors work very well together, they definitely compliment each other. The tone and hues are very nice, while most people focus on the flash of Korra, the rumble and tumble of her you've taken her in a very discipline pose and framed her with the elements. Now I really do enjoy this but the only way I could see to improve on this would be to have the elements carved into the ground beneath her, standing in the center her eyes shut and hands held together. I really do like this image tough and I'd love to see more.