Critical -
I think this word has acquired a negative connotation -
But why?
To me, it implies judicious evaluation (thank you, Merriam Webster) - and I do not see/understand how that is a "bad" thing.
I think most of us are "critical" of our work - again, I do not see or understand how that is a bad thing.
If we did well, I think we should be proud of ourselves.
If we see that there is "room for improvement" - well, awareness is a good thing. We may or may not choose to do - or be able to do - anything about it. Some skills can be improved upon - for others - what we did was as good as it's going to get. And that's okay, too.