The new game, Pokémon Art Academy, allows you to upload your Pokémon artwork to the Miiverse. As the game released in PAL territories last week (and Japan two weeks before that), there are already scores of artwork to browse though. Some of it is pretty amazing -- even just in the last 24 hours on the Japanese Miiverse.
Pokémon Art Academy was released in Japan for the Nintendo 3DS on June 19, 2014. It was released in Europe on July 4, 2014; Australia and New Zealand on July 5, 2014; and will be released in North America sometime this October.