"I have to present top management with an overview of the newly designed ISO 9001:2015 QMS and thought I could focus on risk-based thinking, then an overview of each procedure in the QMS. What do you think? Is it the correct approach or what else can you recommend?”
Focusing on risk-based thinking is important because it is the main change in the standard. I would start to highlight all the new topics of the standard with important input from top management like clauses 4.1; 4.2; 5.2; 6.1; 6.2 and 9.3.
Remember that top management doesn’t need to know in detail what is happening in each process, but certainly, it will be important to make them aware of the main risks and opportunities and action plans around the QMS, around products and services and around processes.
I would try to use an approach where each topic is related to pain or gain for the organization in terms of revenue, reputation, winning/losing customers, … For example, when presenting the risk-based approach I could use the impact of a recent customer complaint, or of Brexit, or the launch of a new promising product.