I actually disagree with Hempuli, I feel the dither looks not so nice.
It really wrecks the feel of a metal texture by making it look all granulated.

Also word of warning; animating things with dither patterns is nearly impossible to do it well.
As well as keep a look out for extreme banding of pixels, which is very obvious right above the shoulder.

I mean the dithering is eh... for the most part decent, but I really dont think it works for this suit of armor.

I made an edit without dither to try and show that it could look nice without dither.
But I guess it's all personal opinion. Dither edit

Eyyy, you got this here! The dithering and colours on the robot are nice, gives it a bit 'rusted' or otherwise dented look, but the surrounding (golden?) things could be a bit better. Mainly they lack the lighting/shading that'd make them really look golden, and then number 2011 is a bit hard to read, mainly the zero, and maybe the upper parts of the 1's.

All in all, I quite like it!