These cards are totally on trend right now - there are lots of beautiful examples on the internet and after seeing how easy they are to create I had to try one for myself!!
I've used the watercolour DSP to decorate my box, and then the coordinating coloured ink for my flowers.
My card is slightly smaller than the ones I've seen on the net - I made mine so it can fit inside a standard envelope - and I can make two cards out of one sheet of A4 cardstock.
My card stock is 14 1/2cm x 21cm and scored at 5cm, 10cm, 15cm, and 20cm on the long side, and then scored at 7cm on the short side.