Excellent entry undseth. Love the whole japanese look. Personally I would lower it down a bit, give it more the grasshopper look you sketched. Overall style nice.

Great, now with the goodies, to everyone who´s having trouble giving the mechs a mechanical look, I recommend checking out this model I made a couple of days ago. Took me about 5 hours or so. Please do take into account the fact that you´ve got to create yourself a model though, so don´t spend too much time playing with the models legs. :p
This is just as a resource, take a good look at the legs union knobs, perhaps it should help.

Hope it helps ...

Enjoy!
(Also, do remember, it´s still my model LOL)