Do you Recognize this Jane Doe?

The body of a woman was found on the canal bridge in Bierton (UK) on Monday, April 22, 2013. She is described as being a heavyset woman with shoulder length black dyed hair and a distinctive tattoo on her right shoulder blade. The following is an "e-fit" of the Jane Doe.

Officials believe she was living rough, by sleeping in a tent or a barn. Is it possible she died of exposure, or is foul play involved?