I've been trying to find any official DVD label artwork for Sabayon but haven't been able to surface anything. I just wanted to confirm if there is or isn't official label artwork. It looks like I may have to make my own.
There are no official ones. In the past, several forum members have posted DVD covers for previous editions, so you might want to adapt one of those rather than starting from scratch. Searching this forum (keywords "DVD cover" should do it) will hopefully find them for you. The last one I recall was emilio's DVD covers for the SL 5.2 release, although the logo was the Adidas/Herbalife logo rather than the hen's footprint, and the colour scheme was different to that in SL 5.4.
If you do create some yourself, please do post them here as other users may well be interested in downloading them.