Just Add Ink have an Inspiration Challenge this week. It features black and white pictures with colourful balloons.
Here is the card I made:
I used a stencil to make an interesting Black and White background. I used the “Hey Girlfriend” stamp set (retired) to add a pop of colour.
Follow this link to Just Add Ink – here you can see the great creations by the Design Team as well as join this Inspiration Challenge.
Ink Everywhere 
Your ombre background looks amazing, and the girl certainly adds a fabulous pop of colour.