First I took everything apart, taking LOTS of pictures along the way. I didn't want to forget where each piece went since I didn't have another seat to reference if I forgot how it went back together.
In Ashley's tutorial she took the original fabric off of the padding. I decided to keep the original fabric and just put new fabric right over top of it.
I was actually quite surprised at how quickly the whole thing came together. It really wasn't nearly as hard as I had envisioned it to be.
I also made a head support piece that can be removed.
And just for fun - a side by side comparison :