Some skins will have a separate post and download link. Others will just have an image in the imgur album for its nation. All downloads are on Yandex Disk in the planes folder. If you see a skin you like in the album, go to Yandex and get the download. Also on this post, I will list skins and download links.
The Chinese Aircraft skins come revised to country of origin and need the scripts files installed to work properly. For example, the Hawk III is configured to resemble the aircraft from the USS Saratoga.
Chinese Aircraft - Link