People have been asking me for prices so this is a very simple list of prices. They are not set in stone and it can vary depending on the art and the complexity of the image.
Simple Line art (usually pin ups with simple background or none): 10 USD.
Medium Line art (2 characters or complex background):15 USD.
Complex Line art (more than 2 characters, or comic pages with 3 or more panels): 25 USD.
Hope this helps a bit, if you are interested please send me a note with the subject "coloring" and I will get in contact with you.
P.S. yeah I suck at writing journals and English is not my Native Language so I apologize for any gramma