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Here's the altered image that inspired the comment from my Flickr friend which, in turn, inspired these five posts this week and my name for the tree.
He commented, "Looks like it is the guard for these rolling fields."
Say good-bye to the Sentinel Tree, but if you missed any of the other alterations, please take a look at the posts from Monday through Thursday this week. Today's alteration, the Orton app from PicMonkey.