Here is a card I have made for the challenge at CAS on Sundays which is white on white. I do like white on white challenges - easy and so elegant as well. The Kaiser craft fern die cut is my new buy from Spotlight while the frame has been die cut using two square frames. The sentiment is a die cut as well.
I will enter this card in:
http://dragonflydreamschallenges.blogspot.com/ - anything goes
http://lilpatchofcraftyfriends.blogspot.com/ - anything goes
https://craftingfromtheheartchallengeblog.blogspot.com/ - anything goes
Happy card making,