Realistic pencil drawings are always interesting. It is nice to watch how artist has managed to draw something like it was photographed by camera. However, the plenty of the pencil drawings you have seen by now probably cannot be compared with the following drawings which are literally mind-blowing.
Those drawings were made by Fredo, a 17-year old guy from Chile who has found an interesting way to create 3D drawings.
Fredo has started to think more seriously about his drawing skills when he was 15. He has learned from some already known artists in this field like M.C.Escher. He also says that he is inspired by the work of Rembrandt, Alex Grey and Beksinki. When he was asked about the time which he needs to produce one of his drawings, he said that some of his drawing have took him months while he was drawing them.

Here you can see some of his 3D realistic pencil drawings which look like they were photographed with camera rather than drawn with hand. Some of you will notice that most of those drawings are pretty scary with some really bizarre details, which surprises me a little bit.