I like it but there's a few things that're bothering me. The 1st thing is that on the render that you chose, there's a source of lighting that's shining above Sora, and on your artwork, there's no source of lighting showing that. So I think you could've used the render wisely.
The vector of Sora that's mixed in with the ' K ' is kind of blurry, so what I would suggest using is using the sharpen tool. Using the tool will help blend the vector and the text well, giving it more of a uniqueness.
Also, the blending along with the background and the render doesn't exactly flow well - but I guess it's just me. But overall, I like it. I like the creativity on what you've done with it.