I came across this technique when trawling around Pinterest (as you do) and thought I'd have a go. The kraft card panel was stamped with the flowers using a white craft ink and once it was dry I stamped again using dye ink slightly offset which was easy to do using a set of clear polymer stamps. Background paper is from Stampin' Up and the sentiment was computer generated. Some little pearly embellishments were popped on for the flower centres.
Stamps - Flower Patch polymer set Stampin' Up
Background paper - also SU from a previous catalogue
Sentiment - Stampin' Up punches and Sue Wilson die cut
Colours used - white and rich razzleberry SU