You found a great subject. You'll want to learn how to adjust the size of your image to the maximum size allowed by the rules. Larger images are easier to see and score higher.
a little small for your picture, this makes it hard to tell if the focus is good or not...(I finally figured out how to save for web and not lose picture sizing...if you need help...I will try and help you)
This pic comes up realllly tiny on my screen, so it's hard to talk about it much. Composition looks pretty basic. I think I'd like this if I could see it better. Make sure to take advantage of as big a pic as you can post here.
You need to use all the available pixels for your image. The longest size can be 640, so before submitting, adjust the size. If the image is too big in file size, adjust the quality to get the size. I can't see the details here, and many will mark you down for it.
from what I can see, the image is an interesting shot of a bowser, with the front cover off, showing the workings. Would love to see it larger to see the detail.