helm wise, yeah, it does look like the Iron Man but other than that, it is much more trimmed, slimmed and aerodynamic. The Iron Man looks more akin to a power puncher while the android like creature seems more towards agility. Less weight and armor and more maneuverability.
I personally like this entry more than your recent one (speed painting 35). This speedpainting has more texture and tonal variety, more dramatic mood, and nice composition. The other work lacks something, maybe it's because of the black background, while this painting has a beautiful illumination and more details to explore. I would like to see more experimentations like this.