Kaladin Stormblessed

I like the black and white contrast you used. The picture itself reminds me of some Final Fantasy or Dynasty Warriors art, and has a very evocative high fantasy feeling.

My only complaint would be a canonically accurate portrayal. In the book, he's described as incredibly tall, so I'd say over 6', and if the spear is to scale, then that thing would be over 10' long, which is ridiculous.

Also, Kaladin has three brands on his forehead, which are circular I believe.

Syl wears a dress.

Of course you have artistic license.

Overall, I like your interpretation of the Highstorm and Kaladin's Stormlight.