I'm very along the lines of Ernie here.
From my limited knowledge, I think that one of the extraordinary achievements of this forum has been the way in which people who would not normally have posted photos of their work have felt comfortable in doing so, safe in the knowledge that their work is unlikely to be savaged.
There has to be a place constructive criticism and sometimes, if not always, the trigger for that may be the specific request of the builder. Part of the problem for me is that while I simply don't know enough to be able to pick out weaknesses, faults etc, I can say what strikes me in a subjective sense as a good piece of work.
Best wishes
Nigel