When stuff is good, it's good to draw more attention to the goodness. Because that would be good. And nothing is gooder than a potato with a monocle.
So if your friend has done something good, you should probably go ahead and mention how good it is. Because then they would FEEL good, and that would be very good.
This is my illustration, and is printed on 300gsm 100% recycled card. Card measures 150x105mm, and comes with a 100% recycled craft paper envelope and is sealed in a cellophane bag.
Card is blank inside.