Only if you want more realism. I think it works very well as is.
+1
If your trying to achieve a painterly look, this processing works fine. However, the problem here - and this may be the reason for your question - is lack of subject.
The light directs our attention to ..., wel..., uhmm..., an empty field!?
The white cars break any idea of "timeless landscape", making them more of an annoyance than perhaps a faint idea of wanting to drive there myself to experience the surrounds. The house on the right falls of the frame and out of the light, so it misses that "what if i lived there" theme that i usually get from those well known Tuscany locations.
Thus: great capture of light and well processed for painterly dreamlike look, but the image lacks interest because it lacks a distinct subject to merit the processing.
