Second day with the fern pattern

I continued developing the fern pattern today.  One of my biggest questions is how much white space (if any) to leave between the various groups of elements in the pattern.  I decided that there was too much white space between the elements I'd arranged yesterday, so I enlarged those.  Then I incorporated a second cluster of fern leaves into the pattern.  I'm not sure whether I've got the right amount of white space around this new cluster or whether it should overlap with the edges of the leaf groups in each of the four corners of the page.