yep. me too, with the exact same fan art. I love that Sakura has written her name and a little heart on the axe blade like it's her favorite school notebook or something! rozefire's got some lovely stuff.
The thing with the anime is that whether Kishi likes the portrayals or not, he is contractually bound to let his work be recreated and redistributed by an animation studio. And depending on the terms of that contract and the working relationship with all players, he could have either a good situation or one that he just has to live with. He may have signed over rights from the get-go, when he was approached to do Naruto for Shonen Jump (as part of a giant marketing package where they hold claims on future iterations of his work). Or it could have come later on, after the manga was firmly established. In which case the animation side of the deal would want to keep with the manga, not diverge from it.
So, fans may feel one way and believe that they intuit Kishimoto's original intent, but regardless of how Kishimoto feels about his craft, he is beholden to a very large system of marketing, distributing and general money-making.
He may drop quotes about Sakura being the heroine or being mystified at Hinata's popularity in the anime, but he certainly reaffirms those views by featuring her in the manga. My point is, he may not have set out to give Hinata such a large role, but he's no fool: If there is a large enough fanbase that supports Hinata and NH, then he's going to appeal to that until the end. He would be a terrible author if he didn't write what the fans wanted, even if it doesn't turn out in the end. NH fans are still Naruto fans, and he's not going to let them down either.
Anyway, no matter what Kishimoto's personal opinions are, he's bound to his contract, for better or for worse. Actually, I'd be willing to bet he's pretty happy with the anime. The characterization of Naruto (voice, mannerisms, etc.) is spot-on. And the romantic aspect that bothers shipping fans is pretty far down on his creative priority list. He spends way more time developing plot lines and jutsus and backstories than on the romance. And if anything, the anime's romantic tension has given him a fanbase bump he probably wouldn't have gotten from the manga. Does anyone know the numbers on how many people watch Naruto anime vs. read the manga? At any rate, though the audience may hope for some tug-of-war, Kishimoto is in the center of a vast network of contracts, companies and employees, all supporting his little creation. That's simply a boat he's not going to rock.
I think to get an idea of Kishimoto's opinion, it is best to look at the illustrations. Those are a the clearest message from the artist to the viewer, without any fear of mistranslation.