As an art instructor, I often teach my students to not fear critiques. Avoid the extremes of believing and embracing every comment you hear (or you'll lose yourself as an artist and come to loathe the creation process), but don't bristle and discard every criticism either.
After recently subjecting my work to a critique by someone in the art business, I have come up with a list of tips (more of reminders for myself than anything):
1) Create art that YOU love and connect with. You will have people who love it and hate it no matter what you do. That's the beauty of diversity.
2) Don't publicly display it until you are ready. You don't have to wait until it is perfect (artists rarely use this adjective to describe our work), but do wait until you are prepared for people to engage with it.
3) Understand the elements of a good critique: There is a difference between someone pointing out the technical "flaws" in an artwork (for example, proportion), and sharing their opinion of it.
4) Above all, take everything into consideration and choose which critiques to embrace and which to not. Either way, try to see the beauty in having someone engage with your art.
How about you? What tips would you add?