I think its rather well done and I love Gardevoir, I don't quite understand why so many people think its disgusting, unless its because of the Ralts, which I admit is my least favorite detail of this, but the beautiful Gardevoir outweighs it
Maybe it's how round the faces are (the means by which may also affect the rest of the pic less noticeably). Lack-of-nose being more apparent? Short ear-things? Something just feels...toony about it. As in, designedly toony, even if that wasn't the artist's intention. A bit too inherently goofy to be fully hawt.