Tank: 2 point perspective and 123/half way to black shading exercise.

As usual, i began with looking up some reference material, focusing this time on not just the intended subject matter, but also the requested perspective most commonly used for vehicle concepts.

 I then proceeded to sketch out a couple of designs, ahain, focusing more on the technical drawing aspect of two point perspective than the details of the tank itself.

Once i had decided on the basic design, i uploaded the image into photoshop, and proceeded to add in the basic values using the 123 half way to black method. 

following this, i decided to add a color layer, and begin to add detail by laying texture images on a multiply layer to keep the values.