Brilliant
I think the idea, and the use of the kanji lettering is perfect. There's only two things I can think of that I think are kinda bad about it. The first is the paper, but I suppose that it as an instantaneous drawing (I do them too). The second is the lines. The lines round the dragons horns and belly aren't really straight (or purposefully curved), this art is brilliant, but i think with a bit of shading and some purpose to the curves in your lines would make this brilliant.