Fire Storm walker

It's a cool design, my only critique goes to the legs. it looks like a good hit in the back could topple it forwards. The taller things are, and the more weight you place higher off the ground, the bigger the base has to be to remain stable. Plus, if you want it to be a good runner/walker, you're going to want it to have feet that give good traction. The legs it has at the moment would work better if they were in groups of four to cover a wider base.