It's up to you whether you use the colours or image as your inspiration... or both!
I went with the colours, and picked the following Promarkers as my starting point ;
Soft Green/Ivory/Baby Pink/Salmon Pink and Warm Grey 4/5 - not sure how helpful that was though as once the image was coloured, finding papers to match was a bit tricky!
Got there in the end though with a double sided sheet from MME - The Sweetest Thing and a sheet from my MME Lost & Found pad. The image is a gorgeous kitty one from LOTV.