Open Minecraft and click the little wirehanger icon under your avatar on the start screen. This will take you to the customize skin screen. In the Default box, click the avatar outline, and click the ‘Choose New Skin’ button in the Custom box. Select the PNG file you downloaded, and the skin will be applied.What is a Nova skin?
Nova Skin is designed to help players of all skill levels—designer or adventurer, professional skinner or early beginner. Use it as a complete suite or use to start more complex arts.