I really like your paw stuff :) How much per character, color?

It depends, It could be from 10$ to 15$- more or less depending on what you want. Porn is a bit more expensive than non-porn.
This is some ideas on what the price will be but its not set in stone. Singles oc is around 5- 10 to add another its either 5 or 10 more depending if it has extra details or not.

Depending on how the paws are it will cost +5 for 'fetish'. If its normal paws (like standing on or relaxed) its normally not added but if its detail for pleasures it would be the +5 (Higher detail on the feet and doing what you want them to do)

Pretty much you ask what you want, tell me how much you want to pay, and I'll agree or not.

http://www.furaffinity.net/view/5845201/
That is the 'chart' to give a better idea to things.
lowest prices for full bodies starting price would be like 10-15. Though all and all it's how much you're willing to pay.

Ah, you even knew what I was gonna ask for XD so the base price for 4 characters color would be about 50-60?

Around there. I would have to look at the characters before final judgment. :)

I'm going to go to bed now, (stayed up all night and its 6 in the morning.) Please send a note of what you want and I'll talk through it with you. I want to make it so you get exactly what you want for the cheapest price.