Freshen up a presentation

Hello, I have an old powerpoint presentation which needs a refresh.

I need my new branding adding to it and the graphics updated to look sharper and match my new brand.

I have attached a sample of the current graphic, there are around 8 versions with different headings of this graphic. i can forward the whole presentation before we agree on the project.

i think it will take maximum of one hour.

thank you in advance.