Too bad we know what Smugleaf's first evolution looks like thanks to that leaked anime art.

http://archives.bulbagarden.net/media/upload/8/84/BW_anime.png

(Also I note a lack of any pictures of Iris, what's the deal with that?)

That's beta art so there's a good chance the first evolution will change from what's in that pic by the official release date.

Given Iris is exactly the same and she's an original character (while the devs have said the starters and their evos are the first things made in each gen)