The new artwork for the Johto Pokémon are surprisingly well done. A lot of them show a certain aspect of themselves, which I find really cool to add. Some of my favorites would have to be Miltank, Feraligatr, and even Mareep looks quite cute in their new artwork. The PokéDex itself was amazingly fun to mess around with, and I wouldn't be surprised if I go back playing around with it once more. Once you get the hanf of how to use it, the translations aren't really needed, but more on how to use the different functions of it to see the new artwork of the Johto Pokémon.
My only concern is that many here are referring to the new Pokémon artworks as their, "sprites," so just wanted to clear up that this will not be their game sprites you see. It will be portrayed differently or similar in the game, but these are more so their new art work designed by Sugimori [the same one who designed the artworks of the Pokémon almost ten years ago.