Soft Rejected 3 times — Can any one help?

I got soft reject for my wordpress theme, please can anyone give me good advice? I will very appreciate.
This is the message of the last time:
Sorry, but the changes are still not enough. The typography is bland, there are spacing issues, and overall, it just doesn’t feel like a premium submission.

Please advice.
Could you please suggest me how can I improve this theme?
Thank you very much!

The demo site is: http://demos.dnngo.net/dng-theme/

I haven’t checked your demos but a look at your landing page I see:

  • Header looks stretched
  • Navigation needs more work on spacing
  • Headings needs more work on typography wrong line height and font size
  • Buttons aren’t clear and not identifiable

Thanks so much for your valuable advice! Thanks!:blush: