Help wit a power point presentation

Hello everybody. I made a presentation under time pressure, I need someone to change the letters from Helvetica to source sans pro. I have four pictures that need to look better, they are not symmetrical and at the end is adding the Logo. At the end this presentation has to be open so I can change it in the future.
The work is done, now I just want it to look perfect. This presentation has only six pages.
At the moment my workload is high and I have other priorities that have to be done as soon as possible, that is the reason why I am asking you to help me in making it look nice