Good construction, would like some detail shots of leg joints. Did you use the clicking joints? Also, a Protip: MOCs look better if the brick color is more coordinated. Another protip: if there is a setting on your camera that is good with closeups and smaller things, shoot LEGO pictures with that against a white background, like a white sheet hanging behind it. Then, the name. I'm going to hazard a guess: All Terrain Heavy Attack Walker? Use something more original, an actual name like Rancor's Fang or Sentinel Artillery Walker or something. The weapons could use some work, but they aren't bad. Total rating is 6.5/10. A good start, but work needs to be done.