Thanks/I do not think they are similar. since I did not copy them. this is my idea. many robots have a similar structure of the feet. like chickens. chickens, too, need to be afraid of claims of copyright?
Sorry, i did not mean to suggest that you had copied the ideas, i was just pointing out how similar they were (gun and missile pod positioning and so forth) and yes, you are right, at a base level any mech design will have similarities (much like chickens...)
Awesome designs. What really brings it out is the DOF and the dirt maps/ambient occlusion. Would just present them better in terms of typography and give them some breathing space as they're a bit sandwiched in. Maybe render them on a matte object and put some parchment/mech background in.