Upload & Sell: On
How can you tell it's not vertical Charlie, the sides aren't even vertical! I'll grid it and see!
It's sort of like seeing your grandma (as a child) for the first time in a couple of months. You take one look and say "Grandma!"
You don't think, "Grey hair, putting on a few pounds, has that wonderful smile that only she has... it must be grandma."
However, since this pic isn't anyone's grandma, my immediate response to looking at the image was that it tilts to the right. To back that up because few on the forum ever comment about "lean," I examined the middle of the pic- from top to bottom. The horizontal lines of the cake layers aren't exactly horizontal in the image (they are noticeably not horizontal).
Now, it might be argued that "The table wasn't exactly horizontal," etc. That might be true- but it's irrelevant.
Adding to the general problem is the old battle of perception vs reality. Sometimes the perception is one thing and the reality is another. The reality might be of primary importance to the photographer, but all the viewer has is the perception... NOT the reality (we weren't there at the time).
Which is more important? The photographer's knowledge? Or what the viewer sees?
I usually side with the viewer- but that isn't necessarily correct.
Ultimately the photographer chooses who is more important regarding a particular image...the photographer or the viewer.