Here are the current contenders - I'll be looking to improve upon a few of these before submission in August.
Here's this list:
1. A photo taken at 1:45 (proof in the image) - can be AM or PM, your choice (145 by XX.jpg)
2. A candid shot of someone reading a book or newspaper (BOOK by XX.jpg)
3. Something Broken (BROKEN by XX.jpg)
4. Part of a London Bus (BUS by XX.jpg)
5. After Dark (DARK by XX.jpg)
6. Walking the Dog (DOG by XX.jpg)
7. A Garden Visitor (GARDEN by XX.jpg)
8. Something beginning with "G" (GEE by XX.jpg)
9. My Lunch (LUNCH by XX.jpg)
10. A Mirror Image (MIRROR by XX.jpg)
11. A Triangle (TRIANGLE by XX.jpg)
12. Something Yellow (YELLOW by XX.jpg)