HubSpot CMS Theme Rejected - Can anyone provide some feedback?

I submitted what I thought was a decent HubSpot theme with tons of customisation options and modules.
The theme was rejected with reason “we found it isn’t at the quality standard required to move forward
The demo URL is:

Any feedback on what I can improve in a site like this will be very useful and appreciated.
I also noticed that there seems to be only one new HubSpot theme on the marketplace this year. Are they not accepting HubSpot themes at all?

Thanks in advance!