Hello
Here is my first work of 2015 to practice metal texturing:
He looks great! Nice render!
I agree, this is awesome! You nailed the texturing. 
What a lovely guy! I really like his body language and his face expression, he seems like willing to work. A good thing for a worker bot =)
The lighting is pretty nice too and the textures are not bad either. The used look seems to be placed a little bit randomly but that’s already nitpicky 
Keep it up!
Awesome Work…Very nice.very amazing…like Wall-E :d
Please show us your Node Setup and your Lighting Setup…Thanks
Really Great Work! I love it! 5* starts from me!
Nodes:
Node setup isn’t very complex, metal appearance comes mostly from textures:
Lighting:
High power ~100 strength emission material on plane behind character for rim light and one above to the side. Others are lower power. Also an HDRI map for world material.
Simple, yet amazing!! GREAT JOB!
Yeah, fantastic, perfect example of how a relatively basic design can still look impressive with proper skill.