I know how negative and non-constructive criticism can hurt, but when one posts their work in the public eye you will get all opinions. Constructive, non-constructive, and downright hurtful.

Never, ever, let anyone else's mood or opinion dictate your own. If you are to give up on things you love because of a couple of people's opinions (that you don't even know, I might add), I think it means you really need to focus on strengthening your own opinion of your obvious talent.

Focus on the positive, don't give any energy to the negative.