If you are talking about photography, well I must say there is no right or wrong. There is no good or bad. Niether a photo is under or over is wrong either..... See how to finish? If a person wants to post a photo of thier workm they must be prepared to accept it.
Whether they are talking about the model's legs, make-up, eyes or any physical part of a human.......or perhaps shooting some landscape where you talk about compositions, colours, filters that should have use........or shoot an object where the placement of the light should be top, side bottom and blah blah blah.........but all this opinion is super valueable if of course in the first place able to accept what other say.
How to finish? I must agree with some that has posted that every critique whether good or bad is the best learning experience you will ever get. Just imagine someone telling you are sooo good in taking some photos with great colours and composition but once you show it to your client, they will either think is sooo good that they want to hire you or your client might ask...."Is this your best?"
This is a small small example I have experience before in real life. They either shoot you in the face straight on or hire you. Sure it hurts but I learn. Have you learn to accept someone's critique yet?
If you really feel posting you only make your ego better go ahead....but please lah be prepared to accept ALL opinions. I have seen plenty of photos in this forum and I think it's not bad and acceptable. Well to me that is.
"Photography is a form of ART". It soooo subjective....lah!
Sorry if I did offend anyone here. Just my 0.00002 cents worth! Hehehe.