This was actually my first experimentation with Minecraft -- I started building it before my TARDIS project.

Basically, just me playing around, learning the interface and building/designing Optimus Prime (literally) from the ground up.

I started with his right foot and just kept building up till I got to his waist, then started building back down the other side. He actually has legs inside the blue armor, which will eventually be connected to his lower legs with various struts and such.

I intend to eventually build him up fully, including a Matrix of Leadership inside his chest, among other cool details.

Additional Notes

Fun fact: this being my first experience with Minecraft, I didn't know I could disable the monster/animal spawning.

After I finished the right leg, I dropped back down to his toe to put in the truck-mode's tail lights. Imagine my surprise when I busted the blue cotton blocks out and discovered his (hollow) foot was filled to the brim with monsters! :P