This is the All Terrain Advanced Raider and the All Terrain Personal Transport, from the Star Wars Expanded Universe. Both were used by the Galactic Empire during the Galactic Civil War. The AT-AR is the taller walker and looks similar to the AT-DP. This walker was used for front line combat and was more heavily armored than its counterpart, the AT-ST. On top, I made a hatch to access the inside where there is room for a pilot and gunner, and includes a small communications panel at the back. It has a large forward facing blaster cannon and two bubble cockpits. The AT-PT was a smaller walker and was used as a personal transport or scout vehicle. It was equipped with two forward mounted blasters and a long range communication antenna.
I tried to post this on Lego Ideas but they won't allow licensed Ideas anymore. :-( This is also my first post on mocpages, so I'm sorry that the pictures are at weird angles .