Someone

if( global.face = 0)
{
    //Body
    draw_sprite(img[20],1,x,y);
    //Arm
    draw_sprite(img[21],1,x+15,y+1);
    //Head
    draw_sprite(img[199],1,x-4,y-35);
}
else
{
    //Not working correct, different position?!?!
    //body
    draw_sprite_ext(img[20],1,x+sprite_get_width(img[199]),y,-1,1,0,c_white,1);
    //Arm
    draw_sprite_ext(img[21],1,x+15+sprite_get_width(img[199]),y+1,-1,1,0,c_white,1);
    //Head
    draw_sprite_ext(img[199],1,x-4+sprite_get_width(img[199])+1,y-35,-1,1,0,c_white,1);
}