This looks cool. If you're used to more non robot looks while wanting to do robots, I suggest looking at biomechanical robots in anime from the late 80s and early 90s. Like Guyver and Cybernetics Guardian.
Here is one example with Cybernetics Guardian. Basically looks like the character is wearing armor, yet it is a robot that is a mix of metal and genetics. A living armor of sorts.
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I adore the design and lighting, it's really reminding me of Warframe and you did a fantastic work on this 🔥