Interesting to see Saudia's product. I'm impressed that they have 54" pitch in business class on their A320s. But, like you, very surprised and disappointed by their lacklustre beverage service - you'd think they would take a leaf out of the book of other Middle Eastern carriers and make their selection of non-alcoholic drinks a real point of difference.
I noticed the OmanAir jet in your shot of CGK. I flew them in J for the first time recently and was seriously impressed (and they have *excellent* booze too!). They have had some amazing business class fares to/from Asia lately, so I'd recommend giving them a try should you have the opportunity.
The Hermitage looks absolutely lovely. A comfortable and well-run hotel with heritage character really is a joy. And in a hole like Jakarta, it makes a difference to have somewhere nice to come home to!