My friends work in a professional design company as the web designer before, he did not earn much during that time, which his boss is giving him only $800 per month. But after he come out as a freelance designer, he is able to earn $2000 - $3000 monthly. Anyway, he did told me that designer is not an esay job, as many customers have different point of view of his design, he need to meet those customer requirements.