I make a lot of playlist and mixes - and they all get their own artwork. Here a few of 2020...
At the top of the page you can see the artwork for the 'top 100 tracks over 2020'. I put the spotify playlist at the bottom of the page.
Below are covers for nonstop mixes. Themes ranging from 80s dance music to 'dusty'lo-fi hiphop.
Also, as a Spotify addict, I keep track of a lot of new music all through the year. Here are those covers. Some of the photo's come from unsplash.com (I always credit the photographer when I use them on Spotify).