I've finally worked out the speed of my animation in Maya with the voiceover in the background while I was animating. After I play-blasted it, then took the play-blast into Premiere Pro where I began putting the mouthing with the words. Once this was okay and I was happy, I exported that video file and dropped it into After Effects where I added the fern diagram pictures onto the tree.
Previs 2 - Scene 1 v2 from Ruby Newland on Vimeo.
It's only my first scene but this is has helped me out greatly, hopefully next the scenes will be easier as I now know what I'm doing. Any feedback as too what I could to improve would be awesome :).