Well, there is a way to turn 2 2d pictures into a 3d model, but the program to do it with, costs about $2000+ USD & I dont think you would want to pay that ammount of money to make a model.
What I would do, would be to make a 3d model in Milkshape 3D(MS3D), & then skin it with a few pictures.
Modeling is very tideous at first, so it takes time to fully understand to where you can make good models.
My strong point is modeling, and I cant make very good skins from scratch.
Probably, the hardest aspect of modeling is skinning, & it can take numerous tries to get a skin to work, the way you want it to work. The UV mapping isnt the easiest of tasks, as you will have to get the outlinning box almost perfect to get favorable results.
The other killer is the bones, when you use them. Milkshape 3D requires bones to be in place, but once they are in, & all of the model vertixs are assigned to the bones, its easy to make the animations.
P.S. I dont remember what the program was that you could take 2 2d pics & make 1 3d model, & I dont remember the website either, look it up on google or something.