No more than 1 page unless you have some serious flying experience. The important information easily fits onto 1 page.
Here is a tip. Most GA employers aren't interested in your ATPL exam results. Just list you have passed them if that's the case. They also aren't really concerned about aviation diplomas. Almost every school now gives out diplomas. Having worked in customer service or holding a bus licence is important.
I can almost guarantee that most GA employers never flick to the second page unless something about you stands out. As you are a newbie this is highly unlikely.