LOL. You see? This is yet another reason I am not an artist. I just have to say 'Hermione' and people know who I mean. If I tried to draw her it's likely people would confuse her with, I dunno, something non-human. So GO YOU!
And there's no such thing as 'just an alternate' IMO. At least in the fic Games we needed every alternate we had and then some. ;)