While very similar, the Rishi image is actually different. Based on my experience, I would guess that the eBay store may have "borrowed" their image from Zen Organics.
Again in my experience, matcha is by far the most challenging teas to photograh, so it doesn't surprise me that small eBay shops and such would try to use other images to sell their product.
when I first posted this comment, I hadn't noticed that the eBay store was
Island Tea Shop. In that case, I am sure that (expletive) took the image without asking.
Two simultaneous threads running about Island Tea Shop's image theiving...