I made some pretty dark stuff during my high school years. Here's some honorable mentions.
Some Samples from a horror comic I never had the heart to finish way back in high school. It was more of a learning process to me anyways. I was studying Juni Ito's style, trying to mimic the pen line work he would use.
May have been inspired my Dr. Jekyll and Mr. Hyde.
Probably one of the more gory things I drew. It was my first piece using grey-scale pens.
Some monster concept art I probably drew while in math.
And here's this lovely thing of a steam punk inventor inspired by one of Da Vinci's inventor sketches.
A graphite and pen drawing of how it feels having TMJ disorder.