Soft reject for significant improvements in terms of aesthetics and attention to details

Today we’ve received a soft rejection on our wordpress minimal blog theme, can you guys please help me about this term significant improvements in terms of aesthetics and attention to details .

Here is the total feedback from honorable reviewer :
"Unfortunately ‘WordPress’ has higher standards in terms of aesthetics. An approved design in other categories does not guarantee an approval under ThemeForest’s WordPress category. Your design has an interesting starting concept, but it needs significant improvements in terms of aesthetics and attention to details.

Example(s):

If you wanna check the theme demo , here is the Yes Blog Minimal Wordpress Theme link

Warm Regards–
Rafsan