I definitely feel like you were being defensive at first, in response to Travellers input.
You were given some points about the photograph that were bringing it down, in that persons opinion, and I think that instead of considering it very carefully and seriously trying to understand those points as best you could, you made excuses and put the onus of responsibility on someone else to "prove" their critique to you, with somewhat of an expectation that they provide you with more information instead of it being something you take the responsibility of trying to find out for yourself first.
I don't think it's a coincidence that someone felt like replying with "nevermind" in response to your reply toward Traveller.
That being said, you did calm down a bit and accept critique with a little more of an open-mind afterwards, but I dislike it when people act as if they aren't being defensive about something and never have been, when it's quite clear to me that they almost certainly were.