Very good, definitely better than the original! One thing I don't like much about speed painting is the lack of details and precision. I know the whole concept of speed painting is not about details but rather about the overall concept. But still, I like details. Like someone said, "God is in the details".
Your image has details, it has precision. The original hasn't. Maybe the details and precision in your image are all an illusion, but a good one it is.

How long did you take to do this, excluding the render time?