Hi,
when you edit your section you can add padding top or bottom like you can see in picture below (this is the way for a particular section).
If you want to change distance on all section you can do that
in the-creator.css file (you can find it here Z:\preview\jomelle\wp-content\themes\jomelle\css\the-creator.css)
on line 38 where you have this code:
.tcvpb_section_tc {
position: relative;
overflow: hidden;
padding-top: 100px;
padding-bottom: 40px;
}
Set padding-top and padding-bottom how you like it and it will be changed on all pages :)
Cheers