Soft Rejected) Need your help!

Hi, after hard work I finally got Soft Rejection. Here is the reason:

Soft Rejected
Sorry to say your theme is not yet ready to be included in WordPress category, because minimum design requirements are not met. Please familiarize yourself with our Marketplace, improve and feel free to resubmit. Good luck!

Can you help give some advice how to fix it?

Here is demo:

too much space in header buddy bad UIā€¦see this for inspiration