These are now available for 20$ able to modify for nearly any species.
The extra space will be full of any requested detail shots, and a pallet.

These are also available for custom characters or artistic freedom characters AND in nsfw!!

Artistic freedom characters:

These will be for only 10$ give me a color pallet and/or a species and I'll make a completely custom character!

NSFW version: http://www.furaffinity.net/view/14139055/