bit of white to steel gray to create a lighter color, paint middle stripe and let dry.
add more white to steel gray, creating a very light gray. paint top stripe as shown and let dry.
paint heart with red and "i love you" with black. let dry and glue as shown.
paint "i you" with the medium gray color you mixed. let dry and glue to stripe.
paint "i love you" with the lightest gray, let dry and glue to stripe. 