There are a few that I really like when it comes to ref sheet. It all really depends on how much you wish to spend, I guess:

 jameless has done a few for me and I've never been disappointed.
http://www.furaffinity.net/full/6831532/
http://www.furaffinity.net/full/6694898/
http://www.furaffinity.net/full/6491676/

 vallhund has done one for me and does a great job on them.
http://www.furaffinity.net/full/6918708/

 Epsilon13 also does a great job on them, at a great price.
http://www.furaffinity.net/full/6789069/

 Aurabeedit has done one for me as well and it turned out amazing.
http://www.furaffinity.net/full/6906187/

 lardo also did one for me and I think it is great.
http://www.furaffinity.net/full/6907605/

I do hope this helps. This should give a nice little price range to look at as well. I know Vallhund is always open and Jameless opens in weekly journals. I've worked with her quite a bit and will tell you that she is amazing to work with.

Thanks, this will be helpful.