Please don't laugh! I know I'm not all that good at this, I'm just learning how to use Paint.net. I'm posting this largely so the artist can see what I've done, but also so that anyone that wants to provide some constructive criticism can leave advice.

Here's the original http://www.furaffinity.net/view/5227640
Original sketch by  sloshedmail

Characters © (from right to left) me,  stripedsmoksage,  sloshedmail