All done in pen, this is a noncolored version of the character concept
An alien in my book, The smell of blood, This is a leecher,
Leechers are about Six feet tall and they are very strong, they project sounds into your head that disorient their opponent... Loud screams.... they hide in the darkness and if they bite or scratch you, if any of their DNA get into your blood stream they begin growing a new inside you, fully grown within a few min.

http://www.webook.com/pro ject/The-Smell-of-Blood