Not so much for water deflection, having the wood raised a little from the concrete as your builders have done will help prevent the post bases from rotting. I was thinking more of something to hide that gap.
I did once I had found one corner that evaded me for ages and working out how to move multiple pieces.
A bit more colour would improve them in my opinion.
I think I can help you out here. It's a bit like modern text speak.
It says what writing doesn't explain. You must have got him off the keyboard before he could finish the sentence.
I would have moved the ramp so it attaches to the corner at the same height as the deck. She would have a straight walk along the deck and straight on to the ramp without having to make that sdways step downward which is what seems to be the problem.