Need help - Could you please help me to know what can I imporve

Below was the message from themeforest:
Thank you for your submission. We have completed our review of “LA - Responsive Single Page Portfolio Template Using Tailwind” and unfortunately we found it isn’t at the quality standard required to move forward, and you won’t be able to re-submit this item again.

Could you please review the website and help me with the improvements for future.