3 - Good concept and perspective/angle. Colors seem good. Criticism; unable to discern the focus - this at 640 (width in this case) would have helped a lot. Perhaps a little more attention to cropping, especially at the top as well and (depending what you had to work with) more of the 'green' included for more balance, likely also have made this better in my opinion.
Sorry for scoring this so low, because it is a great interpretation of the challenge, and it has nice focus and composition.
But the image is so small that the detail and overall impact in the photo is lost.
You can submit images up to 640 pixels on the larger dimension.
Good idea, however the picture is really too small, which usually results in low scores. You should try to make your image as large as possible without going over the limits - File Size: No larger than 150 KB (153,600 bytes).
Dimension: No dimension may be shorter than 160 pixels or longer than 640 pixels. Your dimension are 256 x 184. Next time make the picture bigger and you will score much higher -