Simple notelet or greeting card together with a cute mini envelope that can be tucked inside to give little gifts such as money, seeds or even a lock of hair.
I love this Keira image - so much so that I have the A4 print on my bedroom wall (which goes perfectly with our deep purple curtains and cushions).
What you print onto seems to make a difference with this image however. The card here is printed onto Mad about Cards felt-effect white A4 card and has come out in fairly muted colours. The mini envelope is printed onto Mad about Cards hammer white paper - and the colours have come out much brighter with the background appearing much brighter green.
I prefer the more muted colours myself but if you like the more vivid look, experiment with your paper and card and see what works best.
To make the envelope, print it onto paper and fold to make sharp creases. Stick the side and bottom with double-sided tape or glue stick. Don't seal the top until the contents have been added!