Royalty-Free Engine Photos, orientation: vertical, dominant color: gray
- 1992x2640 Public Domain
- 2000x3008 Public Domain
- 2592x4235 Public Domain
- 1667x2222 Public Domain
- 5764x6017 Public Domain
- 7925x12192 Public Domain
- 2000x3000 Public Domain
- 2832x4256 Public Domain
- 2657x3994 Public Domain