This is a photographic forum, not Fookbook or Instawink (substitute vowels & even consonants of choice), in which context it may be suitable to consider the ethos & aims of what we do. Are we decorators, entertainers, or what? What's the purpose of an image? Of course there's quite a range of answers.
Consider the following: trivialisation; fun; dignity; truth; aesthetic; meaning.
Dom, I sympathise with your aim & plight, but why is this image so important? Are there others from your trip that are more satisfying & easier to deal with?
Not suggesting that you chuck this particular one out, I can see its attractions, but in general sometimes that's what's best to do.
It's a good image of a family group, but a bit challenged aesthetically. Your initial adjustments were a bit wild. I suggest that you keep trying yourself, rather than asking for others' input, & that might be a better learning input, because there's been some pretty crazy stuff posted here!
:-(
;-)