Haha, oh well :'D Happens to everyone!
Um, I'm not quite sure what you mean by that question, but...
I've been pixelling for quite a while, or well... at least for some time. But I've never submitted any pixel works to dA. Though, *
syosa is a proffesional! She've most likely been working with this for years, and have a job in which she uses her skills, or something like that. Most pixellers don't ever reach this level in skill.