Was that face deliberate, or did it just end up that way? Either way, it gives the piece a little extra oomph, ya know? I mean, sure they're made by CGI but they're always referred to as her children and they've developed personalities over the course of the series. Cats and dogs are both very expressive about their feelings and thoughts, who's to say dragons can't be too? They're living beings, not weapons or just fantastical things fluttering about in the background.