I've recently been on holiday in Turin, Italy, as you will probably be able to guess over the next week or so.
At the moment (until the 5th May 2013) at the Galleria d'Arte Moderna there is an exhibition called "The Seduction of Drawing", which focuses on works and sketches done in pencil or ink. It's very interesting, especially the small section that focuses on unfinished oil paintings. I found them fascinating and quite beautiful.
I took some photos of a few. The first two are by Massimo D'Aziglio but unfortunately, I didn't make a note of the name of the artist of the third painting. Sorry about that.