If your emphasis is on the symmetry of something, I think the image should be perfectly horizontal or vertical.
For my taste I would also have turned the pegs so they all looked the same.
Thank You, I appreciate Your advice. I was in a hurry, and didn't even noticed that symmetry is wrong. I'm still learning. This is my 5th day with dslr camera. Than You again, any advice is welcome.
Typically, people new to photography get entranced with the relative perfection that a modern dslr can give without too much effort - like hitting a key on a well tuned piano. But that isn't photography - and anyone with a functional finger or toe can do it.
Once you get past simple shots, you will start to realize that excellence in the technical issues is just the basic required stuff. To be a good photographer you must also have knowledge of your camera, understanding of what make's photos 'good' and the ability ot create new interesting work.