Oh, you are definitively already well advanced, especially for one week.
A small suggestion though, being able to "sculpt" owns characters is the top, but long before getting there, just using existing characters combining the sliders for head and body, can already give good results, especially if then you add up some morphs from various packages that allow to change details of the face and body.
In that way, you may not be able to sell them, but if it is only to make them for yourself, it is more than good enough.
