I just noticed this week's assignment, and had only one evening to work on it. You know how you have a mental image of something that you want to shoot, and it turns out to be much harder than you thought? I thought of a rock skipping over water. The problem starts with organizing enough flat river rocks in an urban area, and then a calm body of water. Not to mention a volunteer to throw the rocks - all in one afternoon
I empathize completely about those times when you have a good idea but are very hard pressed for enough time to really do it justice.
I think you did a good job with a project that I can easily see being very difficult.
Maybe not the winning entry, but a very creditable effort, and it adds to the assignment value.