I think I know exactly how you feel. When you post art there is usually always at least a percentage of people that will like it. Sometimes more, sometimes less. It happens to us all on Deviant Art when we post stuff all the time. I wouldn't worry about it so much as long as you enjoy it and just have fun. In the past few months I created my own superheroine universe and even started a little website. You think I don't get that same feeling every time I post a comic short story? So far I haven't had much feedback. But they seem to be coming back to the website. So I guess I'm doing alright :) I say if you have something to share go for it. You only live once.