Vector to mesh help?

[rippedwithaclaw128]

I'm making my first custom model, but now I've already ran into a problem. I can't figure out how to turn this: http://i.imgur.com/s4VRnnp.png
into a blob-ish curved mesh somehow. 
I almost forgot to mention I'm doing this in blender.

[11th]

You can extrude from it in edit mode since it's a mesh, but you'll need to switch to different views to get the angles and sizes right. I'd recommend using quad view. Also, only do one side of the body. You can just use a mirror modifier to make the other side.

I'm assuming that you already have a basic knowledge of Blender, but if you're not quite sure on something feel free to ask for clarification. |D; I just didn't want to type up a wall of text in case you already knew.

[Jinzo-Advance]

Tip: the number pad keys let you adjust the perspective.