So here's a fun one, I think...
Divide your card into 4 parts - and each part should have a different background pattern. However else you decorate the card is up to you.
Here is Kim's card
Wonderful colors and patterns!!
And if you're wondering whether you need to have EQUAL parts, the answer is no - as long as it's divided into 4 parts.
Divide your card as described and you will "conquer" this challenge ;-)