Hello there!

There’s a few things you can do here, with varying levels and types of skills involved.

For the clothing, you can either buy clothing or you can make clothing. If you make the clothing, look for silver metallic fabrics: silver lame, silver pleather or vinyl, silver foiled or silver mystique (foil dot) spandex, etc. These won’t be comfortable fabrics to wear, but you can get a more realistic metallic look this way.

If you buy clothing, start with a grey base and paint over it with fabric paint. This will take a long time and a lot of paint. For anything stretchy, be sure to stretch it to at least the amount of stretch you need when worn while it is being painted, or else it may not stretch enough once the paint is dry. Make sure the paint is either safe for fabrics or you mix another paint with fabric medium, or else you will end up with crunchy, flaking clothes! You may find it easier to use a spray-on fabric paint like this one (there are many other brands, so look around at reviews) than to use a bottled paint you have to brush on. Since you’d be using a grey base, you would really only need enough paint on the clothing to give it the shiny appearance.

You can also try a hybrid approach if you can find a silvery mesh fabric, and add the silvery mesh over existing clothing.

For the wig, since this outfit is a pretty cartoony style, I have a cursed suggestion: style a grey base wig to exactly how you like it, and then spray paint it with regular silver spray paint. It will have to be stored on a wig head as to not squish it and flake the paint (though spray painted wigs are more flexible than you’d think), and the style isn’t going to ever budge again. 

If that’s too cursed for you, look into what Land of the Lustrous cosplayers do with bits of vinyl and tinsel and add some metallic touches to a regular silver wig. You can also use silver hair glitter to add to the look.

For the skin, you are going to have to get familiar with body painting techniques, but thankfully you really only need to do your face and neck. I would find some metallic silver tights that are a lighter color than your leggings and wear them underneath, and also find (or make out of an extra pair of tights) matching silver gloves for you hands.

I haven’t personally done silver metallic body paint, so someone in the comments may have brand suggestions, but I have heard good things about Mehron’s metallic powder. Be sure that you research proper setting methods for whatever type of paint you go with (we can always help you with that here once you decide on a type).

I would also suggest adding a bit of a silvery white highlighter to the high points of your face to create an additional shiny metallic look and to add a bit of dimension back in.

I hope that helps! Good luck. :]

—Fabrickind / Q&A Staff / Twitter