Choosing the picture was easy. Developing it into a page wasn't so much.
Here is what the flap looks like after several layers and reworks (the little bone and doggy shapes are from Dealz btw, little bags full of shapes, for €1.49!). I'm happy with that bit
The other pages don't look so good, but they might work when I start adding journaling text and pictures to them. Right now, they lack unity. I should have stuck to the bone theme (I even carved a little stamp to match). Adding hearts and arrows (another new little stamp I made) was a mistake. And the flap verso is another mismatch. You live and learn.