And a new sale from me. 
A buyer emailed me to say he had seen this image on the internet but had traced it back to Shutterstock (he gave me the image ID) and should he join there to buy it. I, of course, pointed him to my Symbio site and he quickly went and bought the full size version for $20. So not as good as if he had found the image on Symbio to start, but still a sale for which I got the whole amount.
I checked on Google Images with the phrase “stock photo washington cherry blossoms” and I see this one in position 4 from Shutterstock. Unfortunately a lot of my images on various stock agencies come up before my symbiostock site appears in about row 12 or so. Probably the keywords and descriptions on these early uploads are the same as the words on the main agencies. I try and make them more complex these days, so I live and learn!
Steve