Not a bad design, I'd follow some more tutorial's first thought, with the extruding tools and adjusting the position, size and orientation of faces could push this further so you can improve upon it. But it's a good start and welcome to the 3D modelling world.
Also, you might find these to be of use, you will know how to flick through anim8or first, because my tutorials aren't done in anim8or, but the tools used (all but 'edge extrude, which I offer an alternative method for that) are in anim8or. So I hope the help:
http://seppuku-arts.koetsuaboshi.net/?q=node/5
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