Every one of these images was altered for use on our web site. That involved lots of time, work, and expense on our part. Now that the Sunflower template is being widely distributed through so many channels, I didn't feel like giving our creativity and work away for free. So that's part of why we've begun marking them.
Two names? You lost me on that one unless you're talking about the red tag that we put on our featured items. If so, yes, it does have lots of value and we've been using it long enough to know that it does.
Inasmuch as we've just recently begun playing with it, I don't know if placing our names on the images has any sales value. I'm hoping that it does but I don't yet have a feel for it. What we put on them was intended to help drive home the point that we are actually a real local florist located in our town and not some national order gatherer. I noticed somebody else doing it (I forget who), thought it was kinda neat and served a purpose that I'd been wondering how to address, and decided to try it. Ask me when it's got some history or check back later. If we're still doing it, it had value and was worth doing. If not, it didn't.
I don't know how it could create confusion to the customer. They see it and if they like it, they buy it. If they don't, they don't buy it. What's so hard about that? It's a picture of a flower arrangement that WE can do if you want it. Nothing to be confused about that I see. Maybe I didn't understand the question.