First, humility is an under-appreciated virtue in today's world.
Second, the idea of "your work and art are an expression of you" is dangerously self-centered, in that it can limit your growth by pushing you conform to acceptance over aspiration.
No, I am extremely self-centered. The fact that I can create great things only adds to my own greatness as a person, but I recognize that my personal greatness will always be eclipsed by the greatness of my works.
Second, the idea of "your work and art are an expression of you" is dangerously self-centered, in that it can limit your growth by pushing you conform to acceptance over aspiration.