PPT or canva file will work, so we can more option to design? Please confirm

PPT aka Powerpoint.. No problem.
Canva, never used so no knowledge so would vote against Canva.

Looking at some of the designs a lot of you are using AI/cartoon images of instrument. Please do not do this, your images should be of real instruments.

First of all I want to thank each and every one of you for your help in designing an a5 flyer. I was and am truly impressed with the broad interpretation of the specification and there have been some excellent designs. However. It is now time to start eliminating some of those designs which we will be doing over the next day.
The way it will work is we will look to reduce the designs from the 91 contributions down to just 2. We will messages those two designers personally and may, once we have identified the two, ask for some tweeks before making out final selection of the winner.