That space between panels will depend on how viewers including yourself will look at them on Tapas App.
Take a look at it on your phone and see if you're satisfied or want to change it.
For me, right now I am making sure my panels are not colliding with each other so that it won't look crowded and tight.
This is one of my previous page that i have yet to edit, they collide and sometimes look tight.

This is my current page, the panels no longer collide with each other.

But it is up to you on how much gap you want your panels to be.