Wow, awesome artwork, this is a great contribution.. If I ever get a copy of Pocket Monster that will definitely be the cover I use. I'd really like to see this for the Hummer Team NES pirates. I've started working on some where I just rip the highest resoloution version of the 'real' artwork I can find.. like this:
The reproduction artwork I've chosen, as compared to a legitimate copy of Kart Fighter
Of course, this is sticker artwork for the cartridge, but the concept still applies. It feels much more authentic to have these things as close to what the pirates originally intended as possible.
(P.S. - Yours is 100x more creative.)