OP, look at the picture as you have it.
How would you finish it to make it more effective?
I already posted. It's the last post of page 1.
I don't know what you mean by that.
As I see it, this picture isn't as effective as it could be because the rider is surrounded by areas that are as bright as he is.
The ground is light, the hills are light. there are bright areas all other that pull the eye.
Even the rider himself has bright areas that pull my eye away from his torso and upper half to his arm and his foot.
By creating more contrast in the background, the sprayed dirt becomes more apparent and gives more energy to the picture.
By darkening at least some of the brighter areas, the viewer's eye could settle on the rider first.
Once you have a picture, you know what you want the viewer to look at.
Maximize the impact of that and minimize the things that pull the eye away or let it wander.
Look at great motorcycle shots and see that the center of interest is clear and stands out from what isn't interesting or important.
Here is a link to a friend of mine who shoots mostly track racing. His shots are simple, clean and the subject is well-defined and stands out.
Make your rider stand out.