Really depends on what you'd like. For the moment, till I can get some points stored up on this account my commissions are super discounted, compared to normal. I currently am only taking points.
Chibi Icon (Non pixel) - - > 500 Badge/Headshot - - > 700 Full Body Transparent - - > 1000 Full Body Complex - - > 1500 Reference Sheet - - > 2000
All my prices are really dependent on what you want and character complexity. Alot of these will actually be less, some will be more again depending.