I'm not too keen on custom or alternative artwork for game cases, but I think that spine alterations could be okay if done right. Although, I think that omitting the publisher panel would better promote the customization as something more official and altogether have the package look sleeker. Especially so since there are inconsistencies in the designs when you begin looking at Mortal Kombat 11. Having the spine artwork trapped between two ends is making the design less successful—at least to me.
Sorry if you weren't looking for any critiques or feedback, but I figured I'd throw in my opinion as being a designer.