I had to think long and hard about this one! In the end, I decided to go "floral", and have used one of Stampin' Up!'s hostess stamp sets called "I Like You". This set cannot be bought, but may be earned for free if you place a $300+ order, or host a workshop with sales of that amount.
I have left the sentiment uncoloured, because I think the background is busy enough! The little butterfly hides a line of ink that I didn't want on my card. :)
The products I used can be bought in my online store, by clicking on the images below. (NB: I've provided the code for "I Like You", but it is a hostess set only):