I need advice on Commission prices...so far, I have come up with this: Shoulders&up = $5, Hips&up = $7, Full body = $10
Line Art = see above prices, Black&White = +$3, Colored = +$5
Pet = +$1, Mounted = +$3, Background = +$5
Is this good? Am I over/underpricing my work? Am I just wasting my time and hopes on this?

answer; /// the answer to the above question is (true);

relief sculpture - images are set against a flat background.

a coin is a good example: the inscription, the date, and the figure are slightly raised above a flat surface. the ancient egyptians sometimes carved figures into a flat surface.  

pro: they take significantly less time to make and do not require as much tools or skills as free-standing

cons: not nearly as realistic, as it is not fully 3-d, and does not have the details that a free-standing one does.

freestanding sculptures (also called  carved in the round) are not attached to any  background.   they are 3-dimensional  and fully rendered.