For any professional photographers out there whom are interested in providing a compassionate, worthwile service to families such as Alan's whom might need your skills during such a time of loss, I'd strongly recommend contacting and joining the following organisation.
Now I lay Me Down To Sleep - ~Infant Bereavement Photography~
As much as they're based in the United States, they have a global database of photographers who operate all over the world, donating their time and skills without charge.
And Alan - at the end of the day, there are only two opinions that matter: yours and those of the parent's whose child you photographed. If you're both satisfied that you made the right choice in photographing Skye, then that's all that matters... at least you'll always have something physical and tangible to connect you to Skye than just memories.