mech practice

Though I said it's "mech practice", I feel lazy when colouring it, so it's not very complicated- -"

It's been a while since last time a draw human, and it's fun to make the uniform style cloth and human skin colouring.
Btw, the mech design is really hard, hard then i thought, I really need more practice if i want to draw it better...I feel that i just draw a big iron chunk in this pic. orz