Done in pencil and red pen on paper.
The first one is
The red death from the short story 'The mask of the red death' by A.E. Poe. (can be read online
here.)
The second:
The geek from 'A Georgia story' by Poppy Z. Brite. (published in Wormwood)
The third, this one, The imp from 'Closing time' by Neil Gaiman. (published in Fragile Things)
They are all excellent short stories and you should read them. But I have to admit that 'Closing Time' makes me feel unsettled the most.