Front View: There are six buttons/fasteners at the bottom of the bodice of this pelisse. The collar also folds down to reveal some sort of white, lacy fabric.
Side View: You can get some hint of what the back looks like from the side view. The back appears to be pleated. There are two parts of the sleeve: the top sleeve and the under, full sleeve. I would assume that the back of the pelisse is the standard Regency back of pelisses.