Final Edit

Once I was happy with my project in After Effects I rendered it out as an uncompressed AVI, so not to lose any picture quality.

I then did the same with the platform clip, and took them both into Premiere Pro for editing. 

In Premiere Pro I added my sound effects, fading them in and out using key frames, and also fading my footage in and out at the appropriate times.

I had a few test renders and tweaked things here and there before my final render, In which I used the
‘match sequence settings’ option to get a decent render.