This one begun as an experiment using masking fluid. The window and parts of the female wolf were masked, but as my masking fluid were old (had been hidden away in a cupboard for a few years) it didn't work as expected.

After peeling off the mask the paper had yellowed, the surface rugged and the pencil sketch half gone. I did my best to save it and this is the outcome. Maybe a bit pale as my scanner are a pain in the xxx...