This is my NB Marth skin
If you haven't added a skin before I recommend looking up a guide on youtube as they're pretty short and easy

If you're used to skins replacing a preexisting skin in the game you rename the file:
PlMsNr for neutral
PlMsRe for red
PlMsGr for green
PlMsBk for black
PlMsWh for white
Naming the file any of those will replace the respective skin color with the new one

If you're using mex or some other means you can just add the skin as is

I hope you enjoy the skin and if you want to follow a deranged person on twitter go to @S4ltfps