(Solved) Couple pose positioning issue

Hi everyone, first post here I think, been using poses and the Teleport Sims mod for a few years now but couldn't find a pose for what I wanted, so decided to dive in and make them myself.

I will say now I'm very easily overwhelmed with new things and Blender is a beast for me with all the shortcuts and terms, but I watched a few tutorials by Katverse to get a feel for what I'm supposed to be doing.

Here's how one of the poses is supposed to look in Blender:



However, when trying the pose out in game, this happened:



I've tried to google round and see where I went wrong but my mind is just shutting down so I thought it would be best to just ask directly. 

Mainly I just need to know what I did wrong and how to prevent it happening next time :'D mostly why they're hovering above ground, and why the child isn't at the different angle like in Blender. There are so many steps when doing Blender things I feel like I need a "Blender for Dummies" book or something :'D

I've made a folder of the S4S package and the Blender files for anyone to delve through: Mediafire Link 

Thank you so much for your time and I'll be eternally grateful to any help <3