I remember reading somewhere that there was a possibility of FLEK knowing the El Dorado Jane Doe. But I can't find where I read that.
I'm not sure if these have been compared, but I came across 2 missing girls last night, (who are friends) who resemble FLEK and the El Dorado Jane Doe.
Here are some pics to compare and also their Doe Network pages.
Susan Renee Smalley resembles FLEK.
http://www.doenetwork.org/cases/102dftx.html
And her friend Stacie Elisabeth Madison resembles the El Dorado Jane Doe.
http://www.doenetwork.org/cases/103dftx.html
It won't let me add a 2nd photo to this post. So I'll put the comparison pic of FLEK and Susan Smalley in another post.