I used to have a F-717, got one 15th place shot.
It's a good camera. A tripod, box, , shelf/countertop, or a stack of books for camera support would've helped the long exposure. Then set the camera on timer-mode.
Isn't it sad that a really long exposure, hand held, technically very difficult shot should be so lowly scored. With hindsight, many people would have given you a much higher score - the difficulty level simply does not smack you between the eyes. Well done.
The photo seems a little OoF. Its also hard to tell that the photo fits the challenge. Not a photo I'd hang on my wall. Good luck in this challenge. <4>