Looks like the card can be found with plenty of different swatch colors/patterns
https://www.comc.com/Cards/Baseball/2014/Panini_Golden_Age_-_Legends_of_Music/7/Willie_Nelson/9229469
Note that none of these will constitute a variation being added to the site since they are all the same material.
I'll never quit collecting entirely, but I am downsizing. Check out my COMC store and help me thin out what I don't want so I can buy cards that I do want. See something you like? Send me a message on here, and we can knock the price down quite a bit. I'll even take a bit of a loss if it means getting you a card you really want.