Creating tension is essential , because if your music just goes on with no contrast in a linear motion it will be real boring and cold.
So create some tension by taking out a few bars of some music elements before some changes happen
A few bars of bassline,add a few percussion hits ,or take out a small bar of all music elements then re introduce a brand new section
Or bring back a main riff with main chorus but maybe this time play the main riff with different instrument, in new key ,and new melody pattern. The possibilities are endless and remember there is no right or wrong in music so if it sounds good do it!