I built an Ads Agency and quite happy with the domain, https://adsagency.co.uk The system uses 2 scripts I purchased and modified to work flawlessly with Wordpress. You can signup as a publisher or advertiser. Publishers add code to their websites and advertisers can choose a publisher website to advertise on. Let me know what you think and any changes you would make. Thank you.
As far as the changes: Your fully loaded time was... a staggering 10.8 seconds! https://gtmetrix.com/reports/adsagency.co.uk/XMvoxY5C It's really unacceptable. The setup guide looks miniature on cellphones. Impossible to read. I like your design. But the truth is a site speed is key.