Nothing at the end of the rainbow?

I took two photos of this double rainbow on the way home from school with Little G. this afternoon - one through our favourite collection of trees, and this one from our front doorstep. Neither of them came out as I hoped, but this one just about edged it in that the secondary rainbow is just about visible.

(I was going to link to the Richard Thompson track that's been buzzing around my head since taking this, but on reflection - and a quick re-listen - have decided it's just too depressing. Consider yourselves spared!)