this?
[image: troll-chair.jpg]
or this ?
[image: images?q=tbn;ANd9GcQq32WYgR9jkni3PZqTFYGmjc-0JvjjerP16jsNfsUTJRY1HgI36g]
or...
Sketchup is not very adapted for personnage modeling except maybe in toon modeling
For more organic try the free Sculptris