Shiny Machop

Not bad, at least it changes

meh

So bad

Quite good

He is not feeling well

Its sick it has to puke

Why does it have to be puke green. It's not good.

It's alright, if it went a bit more for either green or brown would have been 4 stars

ugly color

Machop: Tactical edition

Its definitely a less pleasant shade of green than its evolved form. Seems like its sick or dirty? It's still a notable change, so you will immediately tell its shiny though. And arguably 'dirty' kind of suits a construction worker.

To tweak this, I'd make it the same shade as Machoke's green, and also give it the blue eye color change.

Alternatively for a complete overhaul, I'd make it purple/blue like Machoke. Or perhaps change the head fins to a bright yellow like a safety helmet. Its not a pokemon I'm especially passionate about to begin with though so this is a serviceable shiny to me.

someone dug up a corpse and threw it into battle as a distraction

This shiny looks like what would happen if you accidentally put some green clothing in the washing machine with your Machop and now he's permanently stained

Horrible! It looks sick, like it's about to throw up