Well, if you think you have the edge, then ask for the right compensation. Tell them that you are no longer noob in this field and that you have already served many clients. This is another place for you to work, you must have earning much as you do, but if not if they have the salary range, then it should be according to what you think is fair and which is by laws. I have been also a designer from web design gold coast company base in Australia, during my first term as web designing artist, I was given fair salary and it increases years by years.