Slots

Sketch/Flat color/Detailed shading

Headshot - 20/25/35 USD
Halfbody - 40/60/80 USD
Fullbody - 50/80/100 USD

Each additional character - plus 50% of the initial price.

Complex background - 20-40 USD depending on the complexity.

Very detailed design - additional 10-20 USD.

Reference sheet:

100 USD - flat colour;
120 USD - shadows;
+10 USD - a portrait on the sheet;
Plus 5-10 USD for accessories and details;

Chibi - 30 USD (each additional character - plus 100% (2 max)).