Hi!
I'm admittedly no expert at all - which is why I'm here! I bought this photograph a few years ago from an eBay seller and I've never been totally comfortable with its authenticity. As a complete newbie, I'd appreciate any and all opinions on this piece.

A photo of the item and the CoA is attached, as I thought it'd be useful to know the name of the seller. I'd be happy to provide more photos if necessary.

Many thanks!