After a few days fighting with my pastel painting (see the previous post to apreciate the monster I had to dominate!), I'm coming back with this mutant, half done on location, half done in studio and half sketchy, half "something"(Argl! a four half beast...)
But it was a very interesting experience, especialy when you take off the pastel from your paper with a large and hard brush: the result is a ghost painting you can re-use as canvas for your corrections.
Many thanks to Jared for his advice.