This is a reasonably accurate version of what the eyes could see of the melting ice on the pond. As a thumbnail, however, it just appears to be a blurry shot of something mostly white. An accidental shot, maybe.
It wasn't accidental, and in fact the full resolution image looks much better, though still in need of some work. And with some fairly subtle tone curve adjustments, I'd hang a print on my wall. Maybe. If the color scheme was right for the room.
But even with adjustments, the thumbnail remains problamatic. It's the kind of thumbnail that most people wouldn't click to see better because it doesn't look like anything to start with.
The use of thumbnails is so common that a new aesthetic has grown up around them, though I don't know that anyone is talking about it. I'm sure someone is. After all, images are what drives sales online and the vast majority of image are thumbnails when first presented to the user.
A thumbnail has to be bold enough that the subject of the image is reasonably obvious. It might be pattern, it might be a person or a tree or a pond. But the thumbnail for this pond is not recogniziable as a pond and would most likely be skipped over.