Doin' well. Yourself? I looked over your dragon, and I can KIND of see why people might say that, simply because the horn placement on the head is similar to hers, plus the fact that your dragon and Cynder are both girls...
BUT! Take it as a compliment! You weren't even TRYING to make your dragon look like Cynder, and people think she does! That shows you've got a good artistic mind on ye. I mean, yeah, it's annoying that people will try t blame you for it, but in all honesty it WAS a mistake, right? Not much you can do about that because I'm SURE that in your head, your dragon doesn't look any different than how you've drawn her. ^__^
But yeah, no worries, okay? You're a good artist, with plenty of room to grow if ye wish. Try not to worry about what other people say, simply because they don't know all the facts. You don't mean any harm, after all. ^__^