Hi,
If you spend a lot of time in the DA forums, you will see this topic spring up again and again. Whether you want to earn a living doing freelance art, or you just want to do an occasional commission, the following guidelines may help you. For the purposes of this journal I'm going to assume that you developed sufficient skill for potential clients to want to purchase your work. If that is not the case, then get back to studying and practicing :)
1) Why is it so difficult to choose a price? Why can't someone look at my art and tell me what to charge?
Because your ability to sell something is not just a matter of assigning a price based