Looks good man. My only suggestion is maybe trim the neck a bit to give some more room to move your head or maybe wear a beanie under the mask to ease it up a little. Other than that nice job! 
Not bad at all. The only thing i would tell you to do is to wear a black t shirt underneath the jumpsuit and fix the hair a little bit. Overall though you look great!.
There’s nothing wrong with your costume and mask buddy, but if it’s your weight you’re not happy with, well I hear you, for many years and until 6 months ago I weighed 221lbs at 5,11" tall, at a certain point I just said “no more junk food please”, so I started to eat healthy meals and picked up my Boxing training that I’d left off 15 years ago, so happy I got into this wonderful sport again, having so much fun, and it really gives me a good reason to keep myself fit and worked out, and it definitely benefited my cosplay as well, I’m now 182 pounds and couldn’t be happier, so think it over if that makes you feel off or unsecure.
Looks good man just relax have fun
I don’t see your weight as an issue here bud. You give off a grate Michael vibe dude. Like some others have mentioned mabye it’s the TOTS boogeyman which by itself is an excellent mask being under 100$. But just needs some touch ups. Might crop one of these up some other day. The most important thing when going as Michael to conventions or Halloween parties, trick or treating etc…is to have fun and scare the crap outta people as much as possible 
Don’t ever let your appearance stop you from being who you want to be. Your never to skinny or large to pull of a good Michale. And you pull off a grate one as I said 