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hosts specific high-res pins like this Sunset Over The Pier which is explicitly optimized for 2880x1800 Retina displays.
You can find high-quality , specifically optimized for MacBook Pro Retina displays, across several specialized wallpaper sites: 2880x1800 Sunset HD Wallpaper and Background Im...
Sunset Over The Pier - Optimised for the Retina display - 2880 x 1800 hosts specific high-res pins like this Sunset Over
provides a variety of HD Sunset backgrounds and sky-focused imagery suitable for high-resolution desktop setups. 2880x1800 Sunset HD Wallpaper and Background Im...
and Pexels are excellent sources for royalty-free, high-definition photography. You can browse their Sunset photo collections to find raw images that can be cropped or set to fill a 2880x1800 screen.