Fanmail.biz

not 100% sure looks alright but dodgy at the same time. bit expensive though

Looks good.

how can you tell this one is good?

Just my opinion, but unless I know the seller, I don't buy autographs from eBay. Too many fakes out there and the COAs are just as easily faked.
Lisa

Since the majority of the autograph is in the black it's kind of hard to see. But going on the formation of the K, I would say not authentic. And the coa from Todd Mueller that they provide doesn't make it more authentic, as Todd Mueller's contemporary stuff has been shady in past.

I looked at the best I could but it does not look real at all. Her K's are not done like that