Royalty-Free Challenge Photos, dominant color: black
- 3555x2879 Public Domain
- 3158x2400 Public Domain
- 6016x4000 Public Domain
- 5456x3505 Public Domain
- 5184x3456 Public Domain
- 6016x4000 Public Domain
- 3000x1600 Public Domain
- 3600x1800 Public Domain
- 5616x3744 Public Domain
- 4032x2268 Public Domain