Create 3D model

First entry to Blender which is programmed for create 3D model, everything starts with a cube and then Extrude… At first, I didin't start with a cube and then model comes funny and hard to control by its vertices. Getting struggle to make a hollow cube and jelliefishie’s long legs.

Tutor Kah found my problem and I need to start again. Start with a cube and extrude everything I want from a cube. And then a cube with hollow inside comes out~!
Following with the tutorial both in class and open source online, hollow cube was created by just repeat extruding face of the starting cube.
It is a simple and basic way to create 3D models.Finally, jelliefishie come out.
It has a head with no obvious eyes and 9 legs come from its little body inside its big head.
Looks better...

And some images of my model at point of view:

view from side & bottom of model

view from side & top of model