Hey
here is try to make an old robo standing in a tower or something
rendering in Keyshot (no PS)
Hope you like it
Nice one ! My little advice is to try to apply different scales in texture for the rusty parts, it would make the product more realistic, instead of having the feeling you use a single pattern on the whole robot. Breaking the symmetry would give more life to your product :)
thanks! I will try it :)