You could probably use some better artwork. Some images just turn out fuzzy(usually due to size) and don't work. If you can't find an image that doesn't look fuzzy on ycm, you can always use that alternate site everyone is using now-a-days. Or that program everyone used to use. Both of those things can use a portion of an image so that it will be smaller, and therefore less fuzzy. But then, the alternative site has ugly-looking cards and the program requires you to upload each card individually, so it might just be easier to just find a better image.
As far as balance, I think you could make do with 5/6 stars. Since the card is still destroyed by battle, not taking battle damage probably isn't worth relatively weak monster that requires two Tributes.
I'm not sure whether or not you want OCG corrected, but if you do, I can try to help with that.