Here are some wallpapers in 1920x1200 or similar high resolutions, featuring clean designs and textured backgrounds like the paper-style Mercury aesthetic.
Imagine Dragons Night Visions - Stunning HD Wallpaper | 1920x1200 Wallpaper Abyss - Alpha Coders
Mercury: Act 1 Desktop Wallpaper 1920x1080 : r/imaginedragons Mercury - Act 1 - Plugged In Plugged In Imagine Dragons - Mercury Acts 1 & 2 imaginedragons.lnk.to HD wallpaper: artwork, Imagine Dragons | WallpaperFlare Wallpaper Flare Imagine Dragons Logo Wallpapers - Wallpaper Cave Wallpaper Cave [100+] Imagine Dragons Wallpapers | Wallpapers.com Wallpapers.com [50+] Imagine Dragons Wallpapers | WallpaperSafari Wallpaper Safari Imagine Dragons Background Wallpaper 30571 - Baltana Imagine Dragons Wallpaper HD 30579 - Baltana Imagine Dragons Wallpapers 1366x768 - Wallpaper Cave Wallpaper Cave [100+] Imagine Dragons Wallpapers | Wallpapers.com Wallpapers.com Music, Imagine Dragons, HD wallpaper | Peakpx [50+] Imagine Dragons Desktop Wallpapers | WallpaperSafari Wallpaper Safari Imagine Dragons Natural Wallpapers - Wallpaper Cave Wallpaper Cave HD wallpaper: artwork, Imagine Dragons | WallpaperFlare Wallpaper Flare