I added a USD Feinberg Throne liner, USD Laces and coloured the frame blue in order to achieve that Optimus Prime look. I picked some USD Team Wheels, Kamikaze Fritz Wheels and random bearings. The boot itself though wasn't altered or painted at all. I had my fun doing these, and yes the last image is supposed to represent a confrontation between Megatron and Optimus Prime. Sorry for that, I'm kind of a nerd sometimes.