Aloha greenc,
Don't get caught up in his breathing length during the Small Universe. If you need another breath in there, go for it. You want to be able to relax and focus on the visualization, rather than trying to inhale or exhale as long as he does.
That may assist your practice. That goes for the rest of the exercises as well - one the ones that are in sync with your breath (Breathing of the Universe, Seven Steps, Harmony of the Universe), do it to your own breath rather than the timing shown on the video.
Much Love, Shawn
