Please do go to the tutorial about resizing for submission. Thumbnail size submissions will always get a 3 or 4 from me, no matter how good or bad the image is, and its so easy to resize to 640 pixels on the long edge.
As for the image, well the bottles, yep meets the challenge, but look at how you have arranged them - flat accross the fram. Theres endless possibilities for a little more dynamic setup here, especially if you are willing to play with the lighting too