Formatting a 50 slide presentation

I have received a 50 page presentation (17 slides are almost identical to each other (example 3 attached)), which we need formatting so that it looks professional.

We have existing themes, logos, etc you can use. or you can draft a new one to suggest that instead.

Some diagrams would benefit from rework, but we can discuss this as a separate project.

Please post a couple of slide decks as attachments to your proposal.

I intend to use the output as it is to give a presentation, but also then modify it and add graphics, pages etc. as necessary, so please leave elements you do add as editable and usable as a live document.

3 example slides are attached to give you and idea of the current state of these.