Greetings from the critique club...
If it weren't for your description, I wouldn't have been able to guess what this was. A very interesting abstract photograph. This might have done well in the "Abstact Macro" challenge.
The main room for improvement is not the photograph itself, but how the photograph relates to the challenge. For a "fill flash" challenge, most viewers are expecting to see a dominant light source with the use of a secondary (fill flash) light source to fill in the darker areas. This is difficult to discern in your photograph since we cannot see either of the light sources. I believe this is the main reason your photograph did not score higher.
If you need any clarification on any of my comments, please feel free to pm me. It might take some time for me to get back to you. |