Might as well give my thoughts I guess.
In principle I do agree that more circuits is better, as it gives more selectivity between loads. So if one part of the installation becomes faulty, other parts remain intact and in service.
But I also believe in simplicity where possible.
One thing you need to change is having the fridge freezer on A 6 amp MCB. It may only have a small running current, but when the compressor(s) start there is a significant startup surge which will trip a 6A MCB.
The sort of thing that even a competent DIYer will probably not be aware of.
Installation design, even at a relatively simple level, is in my opinion beyond the scope of DIY, because there are so many factors that need to be coordinated, and a huge book of regulations that are applicable and need to be adhered to.