I seriously doubt it. But I do like the mystery of the possibility.
Take a look at Branwell Bronte's paintings of his sisters and compare.
|Gun Group Portrait, by Branwell Bronte|
|Anne, Emily, and Charlotte Bronte, painted by Branwell Bronte|
Here are some other portraits of the sisters
|Emily Bronte, painted by Branwell Bronte|
|Anne Bronte, painted by Charlotte Bronte|
And this is an actual photograph of Charlotte Bronte
It's fascinating to ponder.