The official Pokémon movie website has updated. Translations follow:

Announcing the Results of the Pocket Monsters the Movie: I Choose You! Drawing Contest!

This drawing contest was held in collaboration with 10 Shogakukan magazines!
We received lots of entries from First Grader Magazine, Kindergartener Magazine, Corocoro Comic, Corocoro Ichiban, TV-kun,
Pucchigumi, Pokémon fan, Shonen Sunday, Ciáo and Sunday Web Every
this year as well!
We will now announce the winner of the "Pokémon Drawing Master Prize" chosen from all the grand prize winners,
all the winners the grand prize winners through lucky prize winners from each magazine, as well as the "Pokémon with You! prize" winner!!

Click to see the winning artwork:























Source: http://www.pokemon-movie.jp/illust_contest_result/