In the internet world, negative comments seem to come from a different darker place (they don't care about making you better like my dance teachers did) and this is really unfortunate. Thankfully since my brand is still rather small I don't receive many hateful comments and have been lucky to only get really positive, happy, and appreciative comments/feedback/emails/blog features which I am so thankful for. I actually can't believe all the kind words I receive each month from customers and admirers of my girly illustrations. I have pages and pages of amazingly positive comments to read if I'm ever in a bad mood and they instantly make me happy about my work again.
A few ways I deal with criticism:
• Straight up nasty mean comments with no point such as "Your works sucks!" etc should be ignored completely especially when anonymous. How lame is that?! People who take the time to leave unconstructive negative comments have their own problems. Let's let them sort that out for themselves.
• Constructive criticism such as "You should use black inked lines instead of gray lines. Your work is unclear." may actually help you figure out what your clients like and may even be fun to hear or help you develop your style. This may have been a stylistic choice so feel free back up your choice or to comment a thank you for their input.