The images are there to help potential investors better understand the concept of your company and get a feel for your brand. Use pictures to inspire the crowd and convince them to support your round.
On the campaign creation page in the section called 'Gallery' you can add up to 12 images.
FundedByMe success story Uniti used a simple, highly effective image that completely matched their brand and portrayed their unique selling points at a glance:
In order to increase your chances for a successful funding round, make sure that the pictures are of a high quality and are in line with your business concept.