The anonymous pencil art wasn't bad. Some of it was reasonable, and flattering. The picture of Dad is done very well. Someone paid a lot of attention there.
And then there's...the rest.
Someone had a chest fetish and attempted drawing Dinah. I also find this...fascinating pic of Dad and Arthur. The workmanship is excellent. As for content?
There isn't a way to "un-see" something like that. It leaves a mark on your brain like a ink pen going through the wash.