I had that happen once as well and was slightly purturbed.
A secret that @teamsteem put me onto is to use Markdown rather than Word - it's much better for formatting Steemit style.
https://markdownpad.com/download.html
And before pressing post I save a quick copy of my finished post with the pictures to a temporary email, just in case
Yea, I so learned my lesson ;)
I love your images :)