Seems a little soft on detail, so I looked at the file size. Congratulations! You get one of my (in)famous comments about JPEG compression!
There is some excessive JPEG compression taking away a lot of detail. Your file size is only 82k and you could have used up to 150k for this challenge. Compression kills detail. Always use the least compression you can get away with and still come in under challenge limits. Most image editors have that ability to adjust compression somewhere in the file save dialog.
Also, you should use the maximum image size allowed of 640 pixels on at least one side of your entry. Especially important for a highly detailed image like this.
Hope this helped some. |