Somedays I feel like I know nothing about nothing.

I like this picture... but, I fear is too simple, and to empty.. 
Kind of thing that appeals to me.. minimalism, just a mood, or something a bit more contemplative.....
anyway I posted it in the Photography Forum, with a lot of reserve, and it got a lot of praise... and the others of the same serie ( I posted along with this one) got a lot of indifference and not so good comments... 

Somedays I have the feeling I know nothing about this photography thing... or maybe I'm just a weirdo.. I don't know