Rihanna - Kiss It Better music video
The youtube version has a lot of artifacts from low bitrate conversion. I found a high quality source file (4.48gb) and made a couple encodings. Source file is available on rutracker.
Screenshots do not capture the difference in brightness/contrast between versions for some reason. Source and h265 versions are significantly darker than h264 and youtube.
[old imgur media embed was here once, but it's now gone]