I need a flyer to advertise our classes

I need a flyer which will entice people to come and try one of our bootcamp classes for free. I will provide the wording that needs to be used to do this and the images. I would prefer the colours used to be the same as our brand which is black, red and white. The flyer will be double sided. As an example I have attached a flyer I previously did myself for a different class but I want something a bit more eye catching and easier to read.