Very interesting design but I fear the leg structure wouldn't be able to carry the Mech if it were functioning in a world with about current-level technology. The weight distribution is much more difficult because you have 2 leg actuators instead of one (there's a lot of lever force on the middle piece which might cause an actuator to snap under the pressure) and the legs look like they can barely carry half of the Mechs weight, let alone all of it when doing a step. However, even if the legs were able to carry the weight, the hip actuator connecting leg and body looks like it could snap off under pressure of just a few steps. It's too long and looks too weak to withstand the lever force of the body trying to move downwards and the leg attempting to push it back up.
Sorry if this sounds a lot like nitpicking but being a Mech enthusiast myself I kinda started to think about stuff like weight distribution and other things. I recommend taking a look at the BattleTech/MechWarrior designs (especially light 'Mechs because that's the closest to what you're going for here (still about twice as heavy but you get the idea)). The legs are intended to being able to carry weights almost twice of the 'Mechs to withstand the high forces they will be exposed to in combat. Some look more believable then others but you generally get a good idea of the machines being designed and intended for actual and prolonged combat situations.
Okay, pseudo science bullshit over, you've made a great design which still deserves all the respect it gets, have a nice day ^^'
Thanks a lot for this great comment, i am really agree with you, i have lot of trouble when doing the leg structure and the hip, i past away just to work the entire mech because my brain enter into fire but yeah it could be really better than that, i'm not as good on mechanical theory than making drawing or 3d stuff... i need to learn more technical/mecanical things to add realism inside next work for sure! you are very welcome!
thanks! the shield are just a supplement to protect some part of the mech from intensify fire, and the sihouette is an infected man, the shield can keep them away from it, because if there are too close he can't shoot them! i think