So, draw the top similar to the top part of a hat, then lower lines down and connect them a wavy curve, as on the picture.

Further draw big oval eyes with evil eyebrows and a mouth, and also some curves showing fabric folds.

Everything, is so simply drawn evil reduction.

Kind reduction can be drawn also, only to take away eyebrows and a mouth to draw in a smile, look as it to make in the previous lesson here.

Also you can look at drawing:

1. Casper.

2. Gin.

3. Dracula

4. Bat