Great work, only 2 main things and 3 minor. Of course youre tired of hearing the scaling, so i'll not go into that, but what i was curious about was his legs. how do they fit in the robot legs? is he grafted to the robot legs? is he kneeling or sitting indian style? Just judging by the length and size of arms in relation to "room" available in the darker upper portion with the controls/windshield. assuming the lighter portion directly below it is full of mechanical things, i.e. gears, motors, wires etc. Just wondering what your perspective was on it. at first glance it looks as if he physically can not fit in there, but with a bit of assumption and imagination i would think he could, if he was kneeling with feet apart towards the back. though it still looks cramped and or uncomfortable.
The three minor things are: very little detail on background, maybe put some more detail and blur out the background a bit to give better perspective on distance? The dome, leaning tower? In relation to the middle radio tower in between the domes, the domes seem to lean to the right. The exhaust, maybe more translucent? it was a bit difficult to tell what it was in the small pic, still a bit weird in the big pic until i saw it coming out of robots left foot.
Im not sure why im nit picking your work lol. besides the above mentioned, the forground looks great. love the robot legs, awesome detail, the char looks familiar, cant quite put my finger on who he reminds me of. lighting/shading looks great. not sure if the "look" you were going for was desert, other than that maybe some contrast with colors.
Looking over some of your past work, this piece may have been rushed... afterthought, set aside, paused?
Just curious if all your work is original? some of your past works look "mech anime" and or "megaman series" inspired. Neither of which am i very familiar with. Looks great though, kudos.